【Elasticity】: The gym ball has good elasticity and resistance to play, diameter 4.7cm.
【Material】: The exercise ball is made of PP material, which is resistant to wear and rust.
【Fitness Ball】: Middle aged and elderly fitness ball is suitable to stretch arm and shoulder joints.
【Convenient】: The exercises hand throwing ball is designed with holes, you can match it with a rope of a suitable length.
【Hollow】: You can fill the training ball with sand and other materials, and the weight can be controlled by yourself.