ltem description from the seller
This kit includes an adjustable hand grip strengthener (11–132 lbs) and a black finger stretcher (13/17/21 lbs), ideal for boosting strength and endurance.
Featuring adjustable resistance, this forearm strengthener and finger stretcher suits all ages and genders. Regardless of your fitness level or goals, you can easily find the right intensity for safe, progressive workouts.
Perfect for fitness enthusiasts, climbers, musicians (piano, guitar, etc.) and anyone aiming to enhance grip strength and hand flexibility, it also aids recovery from hand injuries, post-surgery rehabilitation and arthritis.
Scientific stretching and squeezing movements improve blood circulation, relieve stiffness and soreness, and help restore hand function—making it an excellent tool for physical therapy and rehabilitation.