This training ball is for piano beginners, enthusiasts and players, to exercise hand and train finger strength and correct finger posture.
Humanized design, ideal for correcting hand shape. The design is to correct fingering and keep your palms in the correct posture to ensure good palm support.
This piano hand exerciser helps to improve various hand shape problems for piano beginners and instrument players, such as fingers lying flat, collapsed joints, collapsed wrists, bent fingers, insufficient finger span, etc.
High-quality silicone, not easy to deform. Ventilation and heat dissipation hole design keep a comfortable grip. Elastic contraction band, comfortable to wear without strangling.
Comes with 2 pieces of hemispherical finger trainers, available to practice with both hands.