Compact & ultra-light, can practice without instrument anywhere & anytime Tension: 3, 5, 7 pounds Strengthen and stretch the fingers Unique ergonomic design allows you to exercise the fingers, wrists and forearms while practicing the correct action for playing musical instruments Increases finger speed, strength and independence The span between fingers can be extended and strengthened by progressively shifting the fourth button away from the others Compact & ultra-light, can practice without instrument anywhere & anytime
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