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.

• Finger Board Finger Device Training Equipment Including Exercise Ball Training Use for Finger Training
• free size
• Black

Finger Board Finger Device Training Equipment Including Exercise Ball Training Use for Finger TrainingOBER