[XX-Heavy]
[Heavy]
[light]
[X-Heavy]
[Medium]
We have developed our Gripmaster series to be a hand exerciser that will give professional musicians and athletes the most amazing benefits in the world. It has a larger profile and has a better spring of steel and an ergonomic cushion. Prohands Exerciser is the best hand and finger exerciser to strengthen each hand and fingertips using the patented "Spring-loaded Piston Technology" The PM-15002 is designed for experienced professionals who require resistance beyond Medium. Each finger has a resistance of 9 lbs. (4,082 g).
If you experience pain or fatigue, please stop using it immediately. Like any other exercise, excessive use or misuse can cause pain and injury. Always keep in mind to slowly increase the number of times by little