Wrist Trainer Ball, Auto-Start Wrist Strengthener Gyroscopic Forearm Exerciser Gyro Ball for Strengthen Arms, Fingers, Wrist Bones and Muscles(Black)

Fitness Self Starting Grip Ball Palm Ball Wrist Strength Training Tool Magnetic Wrist Strength Ball Self Starting Without Light

Product Description:

• AUTO START DESIGN: Requires pushing the core in the direction of the arrowhead, starting from the internal spring, very brief and convenient. As it rotates, the internal cool-colored light comes on. It saves time and increases happy while recovering from sore muscles.
• LONG LASTING TIME: No strange vibration, can be rotated for a long time without worrying about stopping when moving. 
• COMPACT AND PORTABLE: Convenient design can be carried around, whether in the office, gym or at home, it can be used as a toy to stress at any time, also can exercise arm muscles.
• EXERCISE: increase the strength of wrists, hands, forearms, biceps, triceps, ligaments and shoulders, and convalesce muscle strength.

SPECIFICATIONS:Material: alloy;

Suitable scenes: fitness equipment, fitness and body, sports trend, very challenge;

Size: 70*55cm;Weight: 258g.

Including: 1x wrist forces ball.