Auto start wrist power...

● 【MATERIAL】High-quality zinc alloy and plastic materials, durable and non-toxic,Compact size can be put in your bags to do outdoor activities .
● 【WIDE APPLICATION】 Multifunction design can be used in office, gym or home, and also can be a good pressure reducer as well as a good toy and arm muscle exercising Make Arm Great Again. Strengthen fingers, wrists, hands, forearms, shoulders, and bicep, etc. It also can be beneficial in promoting co-ordination and blood circulation
● 【EASY TO PLAY】You only need to push the core in the direction of the arrow, start by the internal spring,then gradually shake your wrist no rope
● 【NO BATTERIES】 The LED light is not powered by batteries. It’s battery free. No need to worry about power running out.When rotating, the LED lights up. The faster the rotation, the brighter the LED light, set sports, fun, fitness in one,
● 【GIFT】5.Stylish look with a quiet sound can be a great gift for musicians,typists and sports lovers