Professional Aroma Hand Finger Tension Exerciser
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Functions and Features
Fine structure design.inner mechanism by bronze material. visuable tension adjustment for better mastering strength limit.
The best tool to strengthen your fingers,useful for all kinds of music players
Warning:Using the finger exerciser should start from weak tension position,slow pace and less repeat time, and then increase gradually.Once that you feel pain or tired, stop exercise and start again when recovered.
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