Gyroscopic Ball, Self-Starting Wrist Strengthening Device, Used to Strengthen Arms, Fingers, Wrist Bones and Muscles (Size : Style 2) ()

?? Our Wrist ball are a quick and effective way to increase your grip strength and an excellent complement to those who play sports. Professionals and amateurs alike can all benefit from our "One minute, One powerful hand" pledge! ?? Product Details Product name: wrist ball Inner ball material: zinc alloy Shell material: polycarbonate, silicone Size: 70x70x55 (MM) The product contains 1: wrist ball*1, Wrist strap, Ball bag(not including other things) The product contains 2: wrist ball*1（With timer）, Wrist strap, Ball bag(not including other things) ??Usage Instructions: 1. Wearing a special wrist strap is safer to use. 2. Lightly press the core with both thumbs and push it in the direction of the arrow until the core cannot roll forward. 3. Quickly release the core and then one palm grasp the ball body and rotate it. 4. After feeling the ball rotates, the wrist can freely control the ball in a circle. ?? Service: 1. If you need more styles, please click our other products to find the style you want. 2. If you have any questions before or after your purchase, please do not hesitate to contact us.

• 【In addition to decompression, strengthen the strength】The built-in automatic elastic device can be easily activated with one push and release, and the intensity can be controlled to increase the fun of entertainment and the power to experience the impact with the variable speed light
• 【Mechanical power, no power supply required】The centrifugal force generated by the interaction between the rotation of the wrist and the inner rotating core maintains the high-speed rotation of the core
• 【Two styles】One with timer for effective fitness, the other without timer, simple and stylish
• 【Good for health】It can effectively alleviate musculoskeletal pain caused by long-term use of wrists and arms, and can also help fitness enthusiasts to carry out targeted strength training, Can be placed in the accompanying bag when not in use
• 【Suitable for training】 Very suitable for golf, tennis, rock clim, cycling, basketball, cricket, martial arts and to improve the performance of pianists, drummers and guitarists.