ALANES Wrist Trainer Powerball Arm Strengthener Essential Gyroscopic Wrist and Forearm Exerciser Ball(Blue) Throwball Kit

Features: 1. Very comfortable grip. 2. Rehabilitates sore muscles and joints. 3. Use as a strength and coordination builder. 4. Simple to start with a pull-string (included). 5. High quality rubber on the outer, non-stick and anti-slip. Specifications: 1. Weight: 0.31kg 2. Size: 7.3*7.3*5.5CM(Approx) 3. Material: Rubber Band, Plastic Shell Package Includes: 1 x Power Ball 1 x Starting Rope 1 x English Manual Note: 1. Keep away from moist and watered places. 2. Please allow 1-2cm error due to manual measurement. 3. Keep clean inside of ball and avoid any minor articles. 4. As it is precisely produced，never fall on hard surface. 5. Different displays show the same picture may be slightly differences. 6. Be sure that don't touch the ball body when it is at high-speed revolving.