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💥 Grip greatness starts here — don’t just train, dominate your hand strength!
The JTHEW Grip Strength Tester Trainer combines a high-precision electronic dynamometer capable of measuring up to 400lbs with an adjustable resistance grip trainer ranging from 11 to 132 pounds. Designed for serious athletes and professionals, it supports 19 user profiles with detailed tracking and features ergonomic handles for comfortable, extended use. This dual-function device ensures scientific, data-driven grip strength improvement with smart counting to monitor every squeeze.







| ASIN | B0DJSPV6DQ |
| Best Sellers Rank | #8,172 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #37 in Strength Training Grip Strengtheners |
| Brand Name | JTHEW |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (676) |
| Item Dimensions L x W | 7.67"L x 5.1"W |
| Item Shape | Round |
| Item Weight | 1.45 Pounds |
| Manufacturer | JTHEW |
| Material | Plastic, Stainless Steel |
| Model Number | GST001 |
| Part Number | GST001 |
| Style | Adult |
| Tension Supported | Extra-Heavy |
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