The GripMaster Finger Trainer is built to strengthen your grip and finger control with precision. Thanks to its spring-loaded piston system, each finger presses independently, letting you train and strengthen them one at a time. It is a popular choice for athletes, musicians and anyone who wants more dexterous, capable hands and a firmer overall grip.The spring-loaded design gives you adjustable resistance, so you can start gently and build up as your fingers get stronger. Compact and portable, the trainer slips into a pocket or bag for a quick session on the go, at home or between other activities. Targeted finger work like this helps improve grip, flexibility and control for both sport and everyday tasks, from playing an instrument to opening jars.Made from durable plastic, the GripMaster finger trainer is ready for regular use and built to last. Many people also enjoy it for gentle hand and finger conditioning, though it is not a medical device and is not intended to treat or rehabilitate any injury or condition; please follow professional advice for any recovery programme. A handy Selidon tool for stronger, nimbler fingers. Type: Spring-loaded finger trainer Resistance: Adjustable, multiple tension levels Material: Durable plastic Use: Finger, grip and dexterity training