Wrist ball for wrist flexibility and power 1) quality:A grade 2) eco-friendly, strong 3) every kid's toy, all family can play Wrist ball made of PC and ABS(sports exercise ball) Every family member can play it, interesting and healthy. It's good for hands, arm, and wrist.Materials: PC and ABSAttractive appearanceSuitable for promotional and gift purposesCustomized logos are acceptedCE certified