Finger Board Finger Device Training Equipment

High quality OK material, light weight,adjustable and comfortable;
Arc-shaped aluminium inside and training ball can fix fingers and wrist in the function position.
Multi-functions:separage and train fingers;increase the finger flexibility;prevent finger joint deformation and muscle atrophy.
Size:One size fits most, both OK for right and left hands, for the maximum wrist circumference 31cm / 12.2 inches.

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