Aroma AHF-03 Portable Guitar Bass Piano Finger Exerciser Hand Trainer Medium Tension Hand Training Tool

Features:
Hand exerciser grip, a must tool to all music players, also suitable for finger strength exercise in daily life.
Safely and conveniently build strength, endurance, flexibility and coordination.
Provides a complete strength training solution for fingers, hands, wrists, and forearms.
Allows you to adjust individual finger tension from light to heavy, providing all-in-one hand fitness for musicians.
Using silicone material, soft design, comfortable pressing, will not hurt your fingers. Durable, longer using time.