SUNNYIFY

【Efficient exercise】 : It is based on the resonance principle, the high-frequency vibration can reach 12.8Hz, which acts on the deep muscles of the body and strengthens the deep muscles, and has significant effects on fitness.

【Selection of material】 : The materials have been carefully selected, upgrade of alkali free glass fiber, high-precision coating on the surface. The interior by mesh buffer layer, fiber protection layer and glass fiber layer combination.

【Safety fixing nail】 : Gravity ball swing head internal cross nail firmly fixed. It is more secure than ordinary glue stick.

【Integrated molding】 : The use of high-density anti-broken glass fiber, integrated molding. It's more stable to use.

【Rubber grip】 : The grip adopts ergonomic, rubber material, durable and anti-wear, more comfortable grip, diamond shaped radian design so that the movement is more comfortable.