Item Package Dimensions L x W x H | 10.87 x 7.24 x 3.07 inches |
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Package Weight | 0.56 Kilograms |
Item Dimensions LxWxH | 42 x 5 x 0.5 inches |
Item Weight | 1.2 Pounds |
Brand Name | THE FLEX BELT |
Country of Origin | United States |
Warranty Description | 2 Year Limited Warranty |
Model Name | Abdominal Muscle Toner |
Color | Black |
Material | Polyester, Neoprene |
Suggested Users | unisex-adult |
Number of Items | 1 |
Manufacturer | The Flex Belt |
Part Number | 0399-5060 |
Model Year | 2019 |
Included Components | Flex Belt, Carry Pouch, 1 Set of Medical-Grade Gel Pads, AC Charger, Rechargeable Controller, Instruction Manual, Quick Start Guide |
Size | 1 Count (Pack of 1) |
Sport Type | Exercise |
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Abdominal Muscle Toner , Black, 24"-47"
Purchase options and add-ons
Brand | THE FLEX BELT |
Item Form | Gel |
Skin Type | All |
Product Benefits | Firmness |
Recommended Uses For Product | Toning |
About this item
- FDA Cleared for Toning, Strengthening and Firming Abdominal Muscles
- Medical Grade Abdominal Toning Technology for Men and Women
- Clinically Demonstrated Results You Can See and Feel In Just Weeks
- 100-Percent of Users said their abs felt more toned and firm
- 92.3-Percent of users felt the firmness of their abdominal muscles increased
Frequently purchased items with fast delivery
- Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Carbon impactCarbon emissions from the lifecycle of this product were measured, reduced and offset.As certified byCarbonfree Certified
Each Carbonfree Certified product goes through a cradle-to-grave assessment to determine the product’s carbon footprint. The carbon emissions associated with the product are reduced where possible, and remaining carbon emissions are offset with third-party verified carbon reduction projects in renewable energy, energy efficiency and forestry.Part ofClimate Pledge Friendly
From the manufacturer

THE FLEX BELT Ultimate Toning Technology for an Intense Abs Workout

After a 6-Week Clinical* Trial:
- 100% of users reported that their abs felt more toned and firm.
- 92.3% of users felt that the firmness of their ab muscles increased.
Indications for Use:
The Flex Belt is indicated for the improvement of abdominal muscle tone, for strengthening of abdominal muscles, and for the development of a firmer abdomen.
510(k) Clearance #100320.
*Clinical Trials conducted by the University of Wisconsin-LaCrosse School of Exercise and Sport Science.
Maximum Core Strength
THE FLEX BELT is the future of body toning and wellness, giving you the firm, toned muscles you desire. This revolutionary technology allows you to attach a single hand held controller to a range of toning garments.
Discreet and rechargeable, THE FLEX BELT delivers results in just 8 weeks using clinically proven EMS technology which exercises all of the abdominal muscles simultaneously.
The Perfect Contraction
THE FLEX BELT will stimulate all your major stomach muscles at the same time providing you with the perfect abdominal contraction – that means your upper abs, the lower abs and even your obliques are going to get worked... and it does all the work for you. You don't have to worry about your form or come up with the time to get it done.

LISA RINNA - Actress, Author and Fitness Lover
- With my schedule I can't do an ab workout every day, but with The Flex Belt, I'll put it on every day because I'm doing things at the same time. So it's really just being smart. My abs feel like I've had the most amazing workout and I just wore The Flex Belt around the house for 30 minutes.
I would never stand behind a product that I didn't believe in 100% and I believe in The Flex Belt.
So here I am telling you if you'd like to try The Flex Belt, it works - Lisa Rinna

See what fitness professionals say.

The Perfect Abdominal Contraction
Which Muscles Are Targeted?
- Rectus Abdominis - the central abdominal muscles (six-pack)
- Internal Obliques - tightens the core
- External Obliques - for greater flexibility
- Transversus Abdominis - vital for core health & strength
With THE FLEX BELT, you can train your abs even if you're too busy or too tired for a traditional workout.
Our clinically demonstrated, patented medical-grade technology stimulates the nerves that make your muscles contract and relax. As a result, you get an effective abdominal workout that targets all the muscles in your abdomen.
BRIAN WADE
Fitness Expert and Trainer to the Stars
Being an athlete and fitness model for most of my life I know that good abs come from a lot of hard work.
I was blown away by how intense the contractions were on my abs and how unbelievable they felt after my first Flex Belt abdominal workout. What was even more incredible was the convenience of it. I could put The Flex Belt on and continue doing other things!
Our Motto - Live Well.
Here at THE FLEX BELT we believe in living a balanced lifestyle. Having a sensible diet and getting exercise are key to a balanced life. We have aligned ourselves with Celebrities and Professional Athletes who believe the same. All of our endorsers use THE FLEX BELT in addition to their healthy lifestyle.
Our Motto is Eat Right, Exercise and use THE FLEX BELT.
THE FLEX BELT is not a weight loss or fat reduction device.
Product Description
THE FLEX BELT uses clinically demonstrated EMS technology that exercises all of the muscles of the abdomen. This unique design exercises all of the abdominal muscles simultaneously. The belt sends a signal through your nerves to all of your abdominal muscles causing them to contract and relax. This repetitive action builds stronger, firmer and more toned muscles. Belt fits waist sizes 24 to 47 inches (61cm-119cm).
Product information
Technical Details
Additional Information
ASIN | B00340H2TU |
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Customer Reviews |
3.9 out of 5 stars |
Best Sellers Rank | #229,758 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #272 in Waist Trimmers |
Date First Available | January 12, 2010 |
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The Flex Belt Abdominal Muscle Toner , Black, 24"-47"
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Product guides and documents
Videos
Videos for this product
1:50
Click to play video
My personal review & actual demo of the popular FLEX BELT
Angie Burke
Videos for this product
0:53
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Customer Review: Sold me a USED belt…
Candace Byrd Davis
Videos for this product
8:08
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The Flex Belt Abdominal Muscle Toner
Merchant Video
Videos for this product
2:57
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Flexbelt with Adrianne Curry
Flexbelt
Videos for this product
4:03
Click to play video
Flex Belt with Lisa Rinna
Amazon Media
Videos for this product
21:07
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The Flex Belt - FDA Cleared for Toning
Flexbelt
Videos for this product
8:16
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Flex Belt Training Tips
Flexbelt
Videos for this product
2:24
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The Flex Belt - Versus
Flexbelt
Videos for this product
2:20
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The Flex Belt - B&A
Flexbelt
Important information
Directions
1. Apply the Flex Belt around the abdominal area, ensuring a snug fit. 2. Turn on the device and select the desired intensity level. 3. Use the Flex Belt for the recommended time duration, typically 20-30 minutes, as per the user's comfort and the device's instructions.
Legal Disclaimer
No Return/Refund
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonReviews with images

Sent used, broken product
Top reviews from the United States
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- Reviewed in the United States on February 7, 2014I am so tired of reading 1 star reviews from non-users of this item!
Get a life! Say something if it is relevant to the PRODUCT.
I purchased this belt, and I am very happy with it!
I suffer from many health issues, including fibromyalgia and hypothyroidism. The rest is too much to list.
I cannot do situps or crunches, because of the pain that attacks my entire body, due to the fibromyaliga. I have weight I cannot safely lose, even though it was gained due to hypothyroidism while on a healthy diet.
Before my first week of using this product had passed, I could DEFINITELY FEEL a tighter, firmer abdomen. The appearance was subtle, but it boosted my self image, and kept me going, HAPPILY, with the belt.
I wore a tunic, leggings, above the knee boots (flats,) and a belt when I went to a salon I have used for more than 12 years now. ALL of the stylists asked me how I had lost weight! I told them I didn't lose weight. I was just tightening up some tummy muscles. They knew my health issues, and asked if I had joined water aerobics or anything like that. I gave them the info on the Flex Belt, which they looked up immediately.
One stylist purchased a Flex Belt on the spot. She uses it while she cuts and styles hair now. She swears that her firmer abdominal muscles have significantly helped ease her back pain, from being on her feet all day at work!
I am looking at the set for the thighs, and maybe (probably not) the set for the arms. I can't take long WALKS, because of arthritis in my knees, but I do work with free weights for curls and such for my arms. Floor exercises from long ago are helping my legs, but adding such a product couldn't hurt.
My specialist ok'ed the belt for me to try, and I'm glad she did!
I am not obese, but I am full figured. Not the same thing for those of you who are snickering. At the age of 14, I stood 5' 7" and my measurements were 38-26-38. I weighed 128 pounds. I wore a 34 DDD/F bra until I was about 25, then it went to 36 DDD/F.
Within 6 months after the birth of my first child, I was back to the same measurements, but with a little extra "belly pooch" below my natural waistline.
My proportions have remained roughly the same in ratio, with a general gaining of weight slowly over 30 years and a total of 4 children. I now wear a 38-40 DDD/F bra. I don't see gaining 6 inches around my ribs over that time as a tragedy, and I have the other measurements still in proportion.
This belt, giving me the feel of a more solid core, has kept me doing the leg exercises that keep my calves sculpted (much to the surprise of my 18 year old daughter! They are cut!) and the will to continue light free weight exercises for my arms, despite the expected discomfort from the arm that has been through a shoulder surgery (it just kept slipping out of, and back into, socket, painlessly) and a radial nerve release.
Anyone with a remote knowledge of anatomy should KNOW that MUSCLES tense, not fat. That was stated in an earlier review. BUT, what HAPPENS when these muscles flex? ENERGY is used by the body to allow this action. WHERE does this energy come from? NOT from the belt, which causes the contraction.
The ENERGY comes from the BODY. How is excess energy stored in the body, waiting to be used up? AS ADIPOSE TISSUE, more commonly known as FAT.
It is the same energy deposits that are used up during conventional exercise, people! Fat is fat is fat...
Burn it up however you choose, if that is your goal. This belt will tone the muscles under the abdominal fat, and it WILL burn stored energy already in your body = FAT.
IT IS SIMPLE SCIENCE, WHETHER THERE IS DOCUMENTED PROOF FOR THIS OR ANY OTHER PRODUCT OR ACTIVITY THAT REQUIRES MUSCLE FLEXION ANYWHERE IN YOUR BODY.
Folks, you burn fat with every breath you take, even while sleeping. The key is finding a way to burn that fat (some use "calories") in the most efficient method for YOURSELF.
I hope this triggers some memories of common sense, as far as exercise goes.
Not every BODY needs, or can use, the same techniques that work for a DIFFERENT body.
- Reviewed in the United States on July 3, 2016Let me just start by saying that I am not a paid nor did I get the product for free to review, just your average consumer. When I was originally looking at the product I must admit I was a but skeptical. Seemed too good to be true. Abs without having to work them out, NO WAY?! After going to their website and watching testimonials I was suckered in, but I must say this thing is great. That being said there are a few things your should know. 1st is that there is no short cuts when it comes to body enhancements. This is not some miracle product will make you lose weight... It will strengthen and tighten your core, however, if you are not dieting and doing cardio to help you lose body fat you will not see results. You'll be working your muscles in your abdomen sure, but you will not be able to see them if you have body fat sitting on top of them. 2nd people in the reviews complained about it being uncomfortable. Well duh, you are intentionally shocking your body! While it may not feel like moms back rubs it is not painful in any way. You have to work your way up every time you put it on. You cant use it once at a low level and then crank it all the way up the next time. Don't be dumb. 3rd, people seem to complain that the pads go bad too quick and that its "too costly" to keep using. Umm I don't know how people are messing up their gel pads but as long as you recover them with the plastic "shields" every time ("shields" are provided) they will last a very long time. Im going on 2 months with the original pads I started with. 4th people complain about the customer service. This is one thing I cant comment on as I have not had any problems with my unit so I have not had to call them. Overall this product is great. Wish I took a before and after shot so you could see my results but oh well. Hope this review is helpful for those on the fence about it.
- Reviewed in the United States on June 29, 2020I have scoliosis and a lot of back pain. This means a lot of AB exercises will end up causing some back pain no matter how careful I am. So, I was REALLY hoping this thing would work and help me tone up my ABs muscles without back pain. Sadly, it does not. It is basically a non-medical grade TENS unit. I have 2 small TENS units for muscle pain and this belt feels about the same as those small TENS units. It just vibrates the skin and upper layer of flesh (fat). It does NOT cause the muscles to contract like they show in the ads. Those ads are ABSOLUTELY FALSE.
I have cranked this thing up as high as I could stand it ..... to the mid 90s settings. The vibration is REALLY strong at that setting.... so much so that it actually hurts my skin/flesh, but it has NEVER caused my muscles to contract. My chiropractor had a TENS unit that did cause my muscles to contract so I assume that this belt is a not medical grade TENS unit, and does not travel far enough into the skin to reach the muscles. Simply vibrating your skin or fat WILL NOT tone your AB muscles underneath.
I frequently turn the belt around and put the pads on my back to vibrate my back muscles, as it sometimes helps with the back pain. I would return this belt but my other portable TENS unit won't charge, so I may use this thing for back pain.
Top reviews from other countries
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山崎Reviewed in Japan on February 28, 2015
5.0 out of 5 stars 時間を掛けて良い筋肉を育てて下さい。
凄くお腹に効きます、時間を掛ければ堅い筋肉に成ります。
最初から高いレベルだとお腹を痛めるので少しずつレベルを上げれば良いです。
- Jenny OrelleReviewed in Canada on March 15, 2018
5.0 out of 5 stars Review for Flex Belt or Slendertone Ab7?
I love the thought of how this could save me time and help me fit in a workout while doing other things. It's a little soon for me to really rate this yet as I'm in the middle of my first session and it feels great. That being said I'm not sure how I ended up with a Slendertone Ab7 in a Flex Belt box. The packaging says Flex Belt by Slendertone so maybe they're both under the same company now. But it seems to be working well. It means I may have to buy the Flex Belt charger to use with the Flex Belt mini sets (which I wouldn't if this had been an original Flex Belt - but then again I'll be able to work out more than one area at a time once I do, so that may turn out to be a good thing. I'll soon find out if the charger works for the mini too when I order one. ) Still, I'm hopeful and the reviews for Slendertone Ab7 are good. (I had even considered buying it, and maybe the universe thought it was a good idea. (I try to always be positive about everything, which explains the five stars.) I don't know if anyone else has noticed this. At first, I thought the design had been updated until the word "Slendertone" appeared when I turned it on. Or maybe it was just me and everyone else has received a genuine Flex Belt. It's not a bad idea to go to Flexbelt's website to order one, just to be sure. I almost did, but this was a just a bit better price when I worked out the shipping to Canada - and I think it will still work out well. ( : Update: I just found out that both brands are produced by BioMedical Research Ltd. in Ireland, which may explain why there's a logo with the letters BMR on the front (and why it says Slendertone by Flexbelt on some of the packaging. Perhaps the companies have merged.)
- MickReviewed in Australia on May 29, 2020
3.0 out of 5 stars Not as powerful as expected
Disappointed when my item arrived that there wasn't an AU adapter for the charger however the item works well. I'm not convinced the power output to the pads is in line with product reviews as I'm able to use the highest power setting with ease in my first week. I thought this would be something I'd have to get used to. Other tens machines I have owned I have only used to 75% with strong muscle contractions. While the flex belt does engage the muscles I feel that it needs more power. I'll continue to experiment with different pad placement to see if that helps. Hoping that the company will honour the 30day moneyback guarantee if this doesn't work.
- jairam kandalgokarReviewed in India on November 7, 2020
4.0 out of 5 stars Nice Product
Nice Result!
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服部俊之Reviewed in Japan on September 15, 2014
5.0 out of 5 stars 強力
違うメーカーのも使いましたが作りも効きも値段なりでした。これは強力で効きそうです。