High Bouncing Rubber Ball 57mm,hollow nontoxic and without special odor For toys ... do the exercise to lose weig High Bouncing Rubber Ball 1.made of nature rubber 2.pass EN71, safe for kids and ... 5.can print your logoThis toy is made of foam rubber , and used for kids playing or training . Child can use ... of 63mm : about 80g6.color:plain, neon, metallic high bouncing rubber ball,hollow