Features:
- Suitable for those who need wrist training・ like sportsman・ computer typist and pianist - Lightweight and portable・ you can exercise whenever and wherever possible- Durable plastic material・ environmental・ tough and harmless - Easy to operate and use・ do not need the battery or charger・ the rotated speed is up to 12000 RPM- Steel axis・ not easy to deform and break・ a great tool for exercising your arm and wrist strengthNote:
- Be sure that do not touch the ball body when it is at high-speed revolving- Keep clean inside of ball and avoid any minor articles- Keep away from moist and watered places- As it is precisely produced・ never fall on hard surface


0.3380 Package weight: 0.386 kg
Product Size(L x W x H): 7.30 x 7.30 x 6.00 cm / 2.87 x 2.87 x 2.36 inches
Package Size(L x W x H): 10.50 x 9.50 x 6.50 cm / 4.13 x 3.74 x 2.56 inches


Package Contents: 1 x Wrist Ball Roller・ 1 x String