自带英文彩色说明书 启动绳 挂绳 包装彩盒
单个含盒子重量 0.33kg-0.34kg
Note: This item is with speed counter and led light, packed well in retail box.
Color: blue as the picture showed
Weight: 350g/piece
Max Speed: 12,000 R.P.M
Wrist ball doesn’t need battery, it is powered by rotating the wrist, all you need do is to increase the speed by making a rotational wrist movement and the speed of rotation can reach up to 12,000R.P.M. The faster you spin the harder your muscles exercise.
Function
1. Perfect exercise gadget for sports like golf, tennis, squash, cricketm badminton, baseball, bowling, basketball, motocross, mountain climbing.
2. Increases strength in fingers, wrists, hands, forearms, biceps, triceps, ligament and shoulders.
3. Great benefit for musicians, guitarists, pianists, drummers.
4. Rehabilitates sore muscles and joints.