Dụng cụ luyện tập ngón tay chơi đàn piano

Giới thiệu Dụng cụ luyện tập ngón tay chơi đàn piano

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Flanger Guitar Finger Training Device Piano Practice Guzheng Grip Instrument
Features:
100% brand and high quality
The design of curve, practice is very comfortable and avoid fatigue and pain

The strength can be adjusted freely between 2.5 ~ 6 pounds
It can practice the hand multiple parts, such as the palm, fingers, wrist, etc.
It can safely practice the finger endurance, tension, flexibility, coordination
It can help you improve the speed of play and sensitivity
It suitable for people of all age
Specifications:
Size: Approx. 80 x 70 x 15 mm/3.15" x 2.76" x 0.59"
Included:
1 X Guitar Finger Training Device