Description Ergonomically designed to fit small to large hand sizes. perfect for men, women, seniors and teens. Design for athletes and sports enthusiasts who want to increase their hand, wrist, forearem and finger strength for climbing, , Features -Color:Assorted Color -Material:Plastic -Size:16.20X7.00X2.00cm/6.37X2.75X0.79in -Adopted of quality material, it is practical and durable for long time use. -Compact and portable, you can use it anytime and anywhere when needed. -The measurement of the grip is high. Clear scale and accurate measurement. -After measurement, it could be reset by simply sliding. -Comfortable grip gives better strength. Help relieve stress, heal and relieve pain. Adopted of quality material, it is practical and durable for long time use. Compact and portable, you can use it anytime and anywhere when needed. The measurement of the grip is high. Clear scale and accurate measurement. After measurement, it could be reset by simply sliding. Comfortable grip gives better strength. Help relieve stress, heal and relieve pain.