(Last Updated on October 23, 2025 by Henry)
- Name: Thera-Band FlexBar Resistance Bar
- Category: Resistance Bar
- Purpose: Wrist Exerciser, Rehab
- Rating: 4.7 out of 5 stars
- Availability: Amazon (Prime delivery)
- Professional Medical Supplies: Occupational & PT Aids
- 4 Resistance Levels: Durable & Conveniently Portable
- Exercise Instructional Guide Included with Flexbar
Not Sure How to Recover from Hand Pain?
Here’s My Guide on How to Treat RSI.
Overview:
The TheraBand FlexBar is a clinically tested resistance bar that’s been researched and recommended by orthopedic surgeons and physiatrists worldwide. I personally recommend this hand strengthener to anyone looking for an affordable and effective solution to build grip strength or recover from forearm pain. It’s simple, durable, and incredibly practical: the kind of tool you’ll want to keep right in your desk drawer.
Thanks to its portable size, you can take it anywhere, home, work, or even on vacation. It’s ideal for covering your daily physical therapy or rehabilitation exercises quickly and effectively.
According to clinical studies, using a resistance bar can reduce elbow pain by up to 81% and strengthen tendons by as much as 72% in patients suffering from Lateral Epicondylitis (Tennis Elbow). That’s a huge improvement considering how simple the exercise is. This is easily one of the most cost-effective ways to recover from repetitive strain injuries (RSI) and prevent them from coming back.
There’s nothing fancy or gimmicky here, just grab the FlexBar, twist it, and start working. The ridged surface offers excellent grip, preventing slippage even when your hands get sweaty. Plus, it includes a helpful exercise guide, so you can start your forearm rehab right away without having to look up instructions online.
What Are the Pros & Cons of FlexBar Resistance Bar?
Clinically Tested
Pros:
- Excellent Tool for Rehab: Whether you suffer from Repetitive Strain Injury or related conditions, the resistance bar helps you to recover faster as well as improve the functional strength, flexibility & mobility of your forearms & wrists.
- Clinically tested: You really can’t go wrong here; it’s already medically researched to be an effective hand strengthener. It’s recommended by many orthopedic surgeons as well as physiatrists.
- Instructional Guide: It helps you to get started quickly & easily. With an exercise guide that comes with the product by default, you don’t have to go searching for exercises specifically.
- Inexpensive, Portable Product: For the value it offers, this product is incredibly inexpensive. You can take it with you anywhere you go. Use it at your work in an office, use it at home, or while you’re traveling.
- Ideal for any athlete: Doesn’t matter what your sport is. Better grip strength is simply a must-have. It’s ideal for cross-fitters or rock climbers, weightlifters or gymnasts, tennis or guitar players, sport shooters, or martial artists.
Cons:
- Available in One Length Only: All three products with different resistance levels come in one length only. There are no other alternative options available at this point.
- Durable Product, but Could be Even Better: After continuous use, you should expect that there is noticeable wear on ridges.
Still Deciding?
See How it Stacks Up Against Other Wrist Trainers.
FlexBar Resistance Bar – Ranking 94 out of 100
Excellent Equipment
Who is FlexBar Resistance Bar for?
Anyone Who Wants Healthier Hands
Do you have sore wrists, hands, or elbows? Then this exercise device might be ideal for you to get rid of pain. The resistance bar is a useful tool for anyone who suffers from a medical condition that is some type of Repetitive Strain Injury.
A couple of common conditions that are affecting hundreds of thousands of people every year are Tennis Elbow & Golfer’s Elbow. But also related to conditions like Carpal Tunnel Syndrome. It’s specifically designed to treat those conditions. It is also useful for folks who are recovering from a stroke, for example, or generally want to tune up weak hands & forearms.
In addition, the resistance bar is a perfect complement to hand grippers & wrist rollers & therefore welcome in every athlete’s tool set. It can always be used as a warm-up accessory in conjunction with your main workout tools.
The resistance bar is a clinically tested physical therapy device to help you relieve pain, fight back the symptoms of Repetitive Strain Injury & help you recover faster in the long run. In all of these types of conditions, an orthopedic surgeon can tell you that what you need is enough rest, but more importantly, you have to take action once you’ve rested enough to get better.
Depending on your condition, your exercise routine & intensity vary, but universally, one thing is clear. Exercising is a must to fully recover & get rid of pain. FlexBar Resistance Bar helps to improve your hand’s functional strength & mobility.
Why Should You Choose FlexBar Resistance Bar?
It Has Proven its Effectiveness
A lot of folks have had tremendous success with this resistance bar, including myself. It’s simple, it’s effective. It’s inexpensive & clinically tested. You get value for your investment. You can’t go wrong here.
There are thousands of positive reviews about this product & more are added to this list. Resistance Bar is offering you a cost-effective treatment that requires no surgeries, injections, or fancy, over-priced equipment.
TheraBand FlexBar is a durable, flexible resistance device. It’s covered with a ridged surface for enhanced grip during use. You can use it to improve your grip strength & upper extremity stabilization.
You can do this by using bending, twisting & oscillation movements. It’s easy & fun. It’s been medically research-proven & effective for Tennis & Golfer’s Elbow. It helps to strengthen your tendons & get rid of pain, usually within a few weeks.
Technical Details
- Weight: 6.2 pounds / 2,8 kg
- Length: 12 inches / 30 cm
- Diameter: 2 inches / 5 cm
- Colors: Yellow, Red, Green, Blue
- Resistance: Light, Medium, Heavy
- Material: Dry Natural Rubber
FlexBar’s ridged design makes it easy to grip this resistance bar & twist it. It’s portable and easy to take with you.
It’s considered to be ideal for sports grip training for Crossfit or Kayaking, Rock Climbing or Weightlifting, Rowing or Gymnastics, Martial Arts or Racquet Sports.
It weighs about 6.2 pounds & is about 12 inches long. It’s made of dry, natural rubber that takes about 25 pounds of force to bend to a U-shape.
Always Buy a Thera-Band FlexBar from a Trusted Vendor
Avoid Fake Ones
To experience hands-on healthcare or conditioning programs for your injuries & rehabilitation, make sure you get access to authentic products. It’s no secret, there are many fake ones out there, those that merely replicate the original FlexBar.
To ensure that you will receive a 100% authentic Thera-Band FlexBar Resistance bar, you should visit the Performance Health website to find a provider near you. Another option, likely the easiest one for you, is to order FlexBar through Amazon.
These are authorized Thera-Band distributors & you can rest assured that you get top-quality products & nothing less.
Get Rid of Tendonitis & Improve Hand Strength
Hands-On Professional Care
The resistance bar is research-proven Elbow Pain Relief. Depending on how severe your case is, results vary. In most cases, it takes about a month to see significant improvement in your hand health & to get rid of pain caused by tendonitis.
Clinical research has proven that the Thera-Band Flexbar is effective in treating Tennis Elbow & Golfer’s Elbow. The landmark study was covered by the New York Times & Reader’s Digest, as well as USA Today, & multiple other national…
International publications have shown that one exercise performed with the Flexbar Resistance bar designed by Thera-Band has effectively reduced elbow pain by 81% & at the same time increased the strength of tendons by 72% in Tennis Elbow cases.
FlexBar Resistance bar is a very simple, cost-effective device. It’s an injection-free, surgery-free solution for folks who suffer from a Golfer’s Elbow or a Tennis Elbow. It’s simple & effective.
The resistance bar provides excellent upper extremity stabilization exercises – Easy & fun to perform oscillation movements that improve your grip & forearm strength through simple twisting & bending.
It’s a durable device for complete hand, forearm, wrist & elbow exercises. FlexBar is ideal for those involved with sports like Rock Climbing or Martial arts, Weightlifting or Sport Shooting… or painting & guitar playing… You name it. It can be used to improve simple daily activities such as opening doors or jars.
This Training Tool Mainly Targets Wrists & Forearm Support Strength:
One of the 5 Primary Hand Movements.
Easy-to-Follow Exercise Instructions Included
Simple & Fun Exercises
Feel free to take full advantage of the exercise instruction guide that comes along with the Thera-Band FlexBar default package.
You can learn several at-home exercises on how you can start treating your elbow, hand, wrist & forearm pain. It’s likely the best way to make a start & in this way, you can avoid expensive medical treatments & even scary surgeries.
These exercises are simple & fun to perform, taking up no more than a couple of minutes of your time per day. You can treat Tennis Elbow with a simple, single movement that is shown in images.
It’s important to strengthen your tendons to get rid of pain. Simple daily exercises are a good way to achieve that.
Since the FlexBar resistance bar is also portable, it’s very easy to take both the guide & the device itself with you wherever you go: On vacation, business trip, or in your regular workout session.
How Many Different Resistance Levels Does FlexBar Offer You?
4 Different Resistance Levels
Yellow – Extra Light
The Yellow colored version of FlexBar is extra light – It’s a 1 3/8 inch diameter & it takes about 6 pounds of force to bend it in a U-shape.
This one is ideal for beginner patients, both youth & seniors. It’s also intended for those who are experiencing a high degree of wrist, elbow & forearm pain.
Red – Light
The Red colored version of FlexBar is light – It’s a 1 1/2-inch diameter & it takes about 10 pounds of force to bend it in a U-shape.
It’s a great starting point for women who want to treat Tennis Elbow injuries & in general strengthen their hands, wrists & forearms.
Green – Medium
The Green colored version of Flexbar is medium – It’s 1 3/4 inches in diameter & it takes about 15 pounds of force to bend it in a U-shape.
This one is great for painters, gardeners, or musicians. Green is a good starting point for men who suffer from Tennis Elbow.
Blue – Heavy
The Blue colored version of FlexBar is heavy – It’s a 2-inch in diameter & takes about 25 pounds of force to bend it in a U-shape.
It’s a tough one, making it ideal for advanced & elite sports grip training – Rock Climbers & Weightlifters, Martial Artists & Gymnasts, etc.
What Resistance Level Should You Get First?
Start Light & Go From There
Always get a light one first. Doesn’t matter if you’re a big powerlifter & moving heavy-duty weights day in and day out. Most likely, you get this product to treat an injury. Treating an injury does not require anything too difficult. Plain & simple.
Starting light is great for you. You’ll be good to go like that & don’t hesitate to up the level of intensity as you keep progressing.
FlexBar is great that way, offering a measurable, functional exercise & training program for you.
Ideally, you want to buy all of them. Having several different resistance levels is important. Why?
To have a warm-up device that you can always use, no matter what. Secondly, to have a tougher device that is suitable for your regular working sets.
Thirdly, one of the devices you have should be a more challenging one. That’s the one you can use on the days when you feel you need a bit extra push, or simply want to challenge yourself.
Trained healthcare professionals, physical therapists & occupational therapists, as well as multiple other practitioners, are uniquely trained & also specialize in various treatment methods that involve using resistance bar devices just like FlexBar.
Verdict: Is Thera-Band FlexBar Worth it?
Great Rehab Tool for Years to Come
In my opinion, the TheraBand FlexBar is one of the best and most clinically validated hand rehab tools you can get your hands on. It’s small, simple, and ridiculously effective, which is why so many orthopedic specialists and physiotherapists swear by it.
If you’re dealing with Tennis Elbow, Golfer’s Elbow, or any repetitive strain injury (RSI), this device can make a real difference. The resistance twisting motion directly targets your forearm flexors and extensors, helping to restore muscle balance, increase blood flow, and reduce inflammation. It’s exactly what most people need after long hours of typing, gaming, or gripping tools at work.
For me, the best part is how easy and time-efficient this tool is. It takes only a couple of minutes a day, and you’ll start noticing results within a few weeks if you stay consistent. That’s the real power of proper tendon rehab: small effort, huge payoff.
If you’re serious about improving grip strength, recovering from elbow pain, or simply maintaining healthy, strong hands, I highly recommend adding a TheraBand FlexBar to your daily routine. It’s one of those rare training tools that’s scientifically proven, budget-friendly, and built to last.
Thanks for Stopping By
Have Questions?
Please Leave A Comment
Looking for a Beginner Grip Training Guide Instead? Start Here.
Or, Check Out My Grip Training FAQ for Quick Answers.
This is a fantastic product.
Its a good short exercise for those who work long hours behind desk.
I used to have problem with my wrist after long hours in front of the computer.
I think this is due to my posture or it could be my hand positioning on the desk?
It also could be inherited due to peculiar wrist structure. Past traumas, fractures, tendon pulls, related medical conditions & of course your overall posture.
Everything adds up especially on this modern era where we spend infinite hours sitting behind computer.
Devices like this are one of many methods how we can undo the damage to some extent.