Piano Finger Exerciser Trainer Handheld Finger Sensitivity Strength Power Practice Trainer Tension 1. piano hand type finger power generator, strengthen weak fingers, correct hand type, two-handed practice. 2. Finger keys are the same width as the piano keys to the stability of the hand shape .You can get twice the result with half the effort by playing the piano with your fingers. 3. Support type button, made of resin silicone material, support the root of the fingertips with finger buttons, strengthen the fragile fingers and not collapse. 4. choose ABS sanitary material, silicone base, anti-slip and wear-. Specification Type Keyboard and musical instrument accessories Product Name: Piano finger force device Color: A: Pink Material: ABS+Silicone Package Contents: 2 x Piano Finger Exerciser Trainer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.