Flex Bars Training Kit with Hand Therapy Ring and Finger Exerciser
- Grip Strengthener
- 1
- Silicone
- 2.98 pounds
As an Amazon Associate, ProductDome may earn a commission from qualifying purchases made through links on this page.
How it ranks among the 72 grip strengtheners we track
4.3★ across 41 Amazon ratings, Bayesian-smoothed toward the category average.
41 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
100+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 72 grip strengtheners we track - how the scorecard works · full grip strengtheners data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jul 5, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Flex Bars Training Kit (Set 6) bundles four color coded resistance bars from 5 to 25 pounds with a dual sided hand therapy ring and a finger exerciser, aimed at elbow and grip rehab rather than general strength training.
This is a rehab kit before it is a strength kit: the yellow bar is positioned for tennis elbow relief specifically, and the set steps up through red, green, and blue so resistance can increase as pain eases rather than jumping straight to a heavy load. The hand therapy ring and finger exerciser round it out for pinch and individual digit work that a flex bar alone cannot target.
- Four bars from 5 to 25 pounds resistance
- Dual sided hand therapy ring at 50 and 60 pounds
- 8.8 pound finger exerciser for isolated digit work
- Ridged bar surface for a secure grip
Who it's for
People working through tennis elbow, golfer's elbow, carpal tunnel symptoms, or general forearm and grip weakness, especially anyone following a home program after seeing a physical therapist or chiropractor. Less suited to someone wanting a single fixed resistance grip tool.
What buyers say
From Amazon customer reviews.
Reviewers used the set for tennis elbow, pickleball elbow, and general grip and carpal tunnel work, with several noting real pain relief and calling it a cheaper alternative to buying individual Theraband style bars. The main complaint was no instructions in the box, and one reviewer found the bar stiff with limited adjustability and no clear results.
Strengths and trade-offs
Drawn from this product's published specifications.
- Ships without usage instructions
- One reviewer found the bar stiff, limited progress
Performance notes
Progress here comes from working up the four resistance levels in order rather than starting on the heaviest bar, which several buyers used successfully for tennis and pickleball elbow recovery under a therapist's guidance. One reviewer found the bar stiff with little resistance adjustment and reported hand fatigue without noticeable results, so response seems to vary by user and how the bars are worked into a routine.
Specifications
| Brand | Flex |
|---|---|
| Model | Set 6 |
| Dimensions & fit | |
| Item Weight | 2.98 pounds |
| Item Dimensions L x W | 12.2 × 1.6 inches |
| Construction & materials | |
| Material | Silicone |
| Color | Yellow / Red / Green / Blue / Black |
| Included components | |
| Unit Count | 1 |
| Warranty & support | |
| Tension Supported | 5LB / 10LB / 15LB / 20LB / 8.8LB / 50LB - 60LB |
| Other details | |
| Style | Sports, rehabilitation, Therapeutic |
| Part Number | Set 6 |
| Item Shape | Cylinder |
Other Flex grip strengtheners
How it compares
This product against the closest alternatives we track in grip strengtheners.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Flex Bars Training Kit with Hand Therapy Ring and Finger ExerciserThis product | 4.3 / 5 | 41 | 3.6 / 5 |
| FitBeast Grip Strengthener Forearm Strengthener Hand Grips Strengthener KitFitBeast | 4.5 / 5 | 32,232 | 4.6 / 5 |
| KDG Hand Grip Strengthener 2 Pack Adjustable Resistance 10-130 lbs Forearm Exerciser，Grip…KDG | 4.4 / 5 | 15,031 | 4.5 / 5 |
| AIXPI Grip Strength TrainerAIXPI | 4.4 / 5 | 6,882 | 4.5 / 5 |
| D’Addario Varigrip Hand ExerciserD’Addario | 4.7 / 5 | 13,345 | 4.4 / 5 |
Similar grip strengtheners from other brands
Questions about the Flex Set 6
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What resistance levels come in the Flex Bars Training Kit (Set 6)?
Four bars: yellow at 5 pounds, red at 10, green at 15, and blue at 25, plus a dual sided hand therapy ring at 50 and 60 pounds and an 8.8 pound finger exerciser.
Does the Flex Bars kit include instructions?
No, reviewers note the set ships without usage instructions and one had to get guidance from a chiropractor.
Is this flex bar set meant for tennis elbow?
Yes, the yellow 5 pound bar is positioned for tennis elbow relief, with the heavier bars for building strength as symptoms improve.