GOOD FOR HEALTH : Efficiently rehabilitates wrist pain, humerus fracture, scaphoid fracture, radial head fracture, numbness in fingers, numb hands, fractured wrist, elbow tendonitis, broken bones, olecranon bursitis. Increases strength in fingers, wrists, hands, forearms, biceps, triceps, ligament and shoulders.
NEW DESIGN WITH LED : Novelty design with LED lights, which is fun to see how fast you can get it spinning. Cool LED lights inside will light up while spinning, no battery needed, powered by rotating the wrist. Rehabilitates sore muscles, Kill the time & Add fun!
EASY TO USE : Compare with the old version need to start with string,our upgraded version is auto-start design which is simple to start by rotating the wrist.
HIGH QUALITY : Aluminum alloy shell for a powerful hand & forearm exerciser. Metal design enhances control, vibration free, & stability. The unit did not have any weird vibration to it. Also having the silicone grip section is very nice as it helps with the gyro ball not coming loose from your hand.
SUITABLE FOR SPORTS TRAINING : Highly beneficial grip strength trainer for golf, tennis, climbing, cycling, basketball, cricket, martial arts and with improved playing performance for pianists, drummers & guitarists.
TARGERED WRIST EXERCISE:Multiple gravities to solve the difficulty of selectionThe wrist ball is mechanically designed, and the rhythm and speed of the core rotation can be adjusted arbitrarily through manual control. The faster the speed, the greater the force generated. Different groups of people can control different strengths.

Specifications:

Material:         PP,Zinc alloy
Color:             Black,Blue,Red
Size:              5.5cm(2.17 in),7cm(2.76 in)

Package includes:

1 X Gyroscopic Powerball

Note:

1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!

2. Please allow 1-3cm measuring deviation due to manual measurement.