FitBeast Flex Therapy Bars and Therapy Putty Set
- Grip Strengthener
- 6
- Red, Green, Blue
- 3.31 pounds
- Better rated than 88%
A layered hand and forearm therapy set that lets you progress from soft putty work to resistance bar training at your own pace.
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How it ranks among the 72 grip strengtheners we track
4.7★ across 123 Amazon ratings, Bayesian-smoothed toward the category average.
123 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
300+ 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
A 6-piece hand therapy set pairing 3 levels of therapy putty with 3 resistance levels of flex bars, aimed at grip, wrist and forearm training or rehab. It includes a 30-plus page exercise guide for structuring a routine.
The putty and bars serve different roles rather than duplicating each other: putty suits finger movement and grip activation, while the flex bars target wrist rotation and forearm strength. That split matters for anyone recovering from hand or wrist strain, since it lets you start with gentler putty work before progressing to bar-based resistance.
- 6-piece set: putty plus flex bars
- 3 putty levels, 3 bar resistance levels
- Targets fingers, wrist and forearm
- Includes 30+ page exercise guide
Who it's for
People managing hand or wrist stiffness from typing, repetitive use or workouts, plus anyone doing structured grip and forearm rehab. Not aimed at advanced grip athletes needing heavy-load grip trainers.
Strengths and trade-offs
Drawn from this product's published specifications.
- Separate putty and bar tools cover different muscle groups
- Three resistance levels each for gradual progression
- Includes a detailed exercise guide
- Compact enough for daily desk or home use
- Aimed at rehab and daily use, not heavy grip
- Two-tool system means more pieces to track
Performance notes
The 3 putty levels progress from lighter to firmer resistance for finger and grip activation, while the 3 flex bars step up resistance for wrist rotation and forearm control. Using both tools together covers finger, wrist and forearm training in a single set rather than needing separate equipment for each area.
Specifications
| Brand | FitBeast |
|---|---|
| Model | NLBPTKFTZ-01 |
| Dimensions & fit | |
| Item Weight | 3.31 pounds |
| Item Dimensions L x W | 12.7 × 8.1 inches |
| Construction & materials | |
| Material | Silicone, Thermoplastic Elastomers |
| Color | Red, Green, Blue |
| Included components | |
| Unit Count | 6 |
| Warranty & support | |
| Tension Supported | Soft-Med-Firm & 10-15-25LBS |
| Other details | |
| Style | Fitness Resistance Bar for Tennis Elbow, Tendinitis |
| Part Number | NLBPTKFTZ-01 |
Other FitBeast grip strengtheners
How it compares
This product against the closest alternatives we track in grip strengtheners.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| FitBeast Flex Therapy Bars and Therapy Putty SetThis product | 4.7 / 5 | 123 | 4.0 / 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 |
| Logest Metal Hand Grip Strengthener 100LB-350LB No Slip Heavy-Duty Grip Strengthener with…Logest | 4.6 / 5 | 1,800 | 4.4 / 5 |
Similar grip strengtheners from other brands
Questions about the FitBeast NLBPTKFTZ-01
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What's included in the FitBeast NLBPTKFTZ-01 hand therapy set?
Three levels of therapy putty and three resistance levels of flex therapy bars, plus an exercise guide.
Is this FitBeast set meant for rehab or strength training?
It's built for both: gentler putty work suits early rehab and hand activation, while the flex bars add wrist and forearm resistance training.
Who is the FitBeast hand therapy set designed for?
The set is aimed at rehab users, seniors, office workers, musicians, athletes and climbers working on grip, wrist and forearm strength.