Ergonomic design that fits small to large hand sizes - Suitable for men, women, seniors and teenagers Clear and precise display for training feedback - 42 mm diameter round display with a clear scale and auto zero for repeatable readings Purpose built for strength development - Designed for athletes and sports enthusiasts to increase hand, wrist, forearm and finger strength for climbing, shooting, bodybuilding, golf, tennis, and related activities Supports musicians and performing artists - Improves hand strength for musicians including drummers as well as guitar, piano and violin players Practical use scenarios - Climbing, golf and tennis training to enhance grip, control and endurance during performance - Regular practice routines for drummers, guitarists, pianists and violinists to build finger strength and overall hand stamina - Everyday hand function improvement for seniors and individuals undergoing rehabilitation or gradual strength building