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- New Function: Rotate the red knob in the front and adjust the tension and the black point will touch the inner side of the grip strengtheners, then the counting will begin when you grip it with great strength.
- Superior Performance: You can get more benefits of using them: more forearm muscularity, hand endurance, increased hand strength, improved dexterity.
- Various Options: These tools are constructed to be durable and offers users a top quality design with stainless steel tension springs, come with adjustable dial that can be adjusted from 10 to 40 KG.
- Wide Applications: Crown Deals hand grip strengtheners are ideal for improving strength, power and speed in the wrists, fingers and forearms. Ideal for athletes, computer programmer, rock climbers, golfers and tennis players.
- Ergonomics Design: Ergonomically designed and fits well for all hand sizes, perfect for men and women, seniors and teens.
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