Finger arm reinforcement trainer, grip strength tester (Blue) 1.Ergonomically designed to fit small to large hand sizes, perfect for men, women, seniors and teens 2.Designed for athletes and sports enthusiasts who want to increase their hand, wrist, forearm and finger strength for rock climbing, shooting, bodybuilding, golf, tennis etc. 3.Easily adjustable dial and wide range of tensions make the hand exerciser a popular choice for those with arthritis, rheumatoid arthritis, tendonitis, carpal tunnel, tennis elbow and those recovering from a broken wrist and tendon surgery 4.Great hand strengthener for musicians including drummers as well as guitar, piano and violin players Color: blue Material: ABS Size: 15cm×10.5cm×2cm Package includes: 1 × Hand Dynamometer Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia