Odometer Booster Power Wrist Ball - LED - 7 Colors!

Odometer Booster Power Wrist Ball Grip Round Ball LED
- Perfect for those who need wrist training, such as Sports people - great for building your wrist strength and power - for bowling, basketball, golf, tennis, mountain biking, motocross etc., Gymnasts, Computer typists and Pianists
- Increases strength in wrists, fingers, hands
- Lightweight and portable, you can exercise whenever and wherever you want!
- Durable material, environmental, tough and harmless
- Steel axis, not easy to deform and break
- with LED
Features:
All you need do is to increase the speed by making a rotational wrist movement and to keep in sync with the spinning of the ball.
The faster you spin the harder your muscles work.
Internal LED bulbs will light up when the ball is in motion.
Small, compact and transportable, you can take anywhere.
It is powered by rotating the wrist and the speed can reach up to 12.000RPM.
Strengthen fingers, wrists, hands, forearms, shoulders and bicep etc., and also be beneficial in promoting co-ordination and blood circulation.
Rehabilitates sore muscles and joint, great for musicians, guitarists, pianists, drummers.
Counter function allows you to check your rotating speed.
Simple to start with a pull-string.

Specifications:
Material: PC + PP
Colors: Black/Red/Blue/Purple/Green/White/Orange
Item size: 7.3 * 6.1cm/ 2.9 * 2.4in (D * H)
Item weight: 272g/ 9.6oz
Package size: 10 * 8 * 7.8cm/ 3.9 * 3.1 * 3.1in
Package weight: 322g/ 11.4oz

Package contents:
1 x Wrist ball - Please choose your favourite color when ordering
1 x Starting rope
1 x Wrist strap
1 x English instruction