This self massage ball will be your great private massagist.Features:This spiky massage ball helps to relax yourself and offers stimulating effect and increases circulation after long time working.You can hold it on your hand or put it under your feet to release your muscles.Perfect for people， whatever for children， adults or the old.Specifications:Material: PVCColor: BlueDiameter: 90mmPackage Weight: 120g Package List:1 * Massage Ball