... the balls will not be overwelded or less-welded and makes it last longer.2.Transparent water ... center6.Durable handle,cord,safety rope,and environmental PVC and TPU materials7.Test: each product should ... run;3. Inflatable ball games,inflatabel water ball,inflatable pool,bumper ball,zorb ball,zorb ball ramp,bumper boat,panddle ... arena.Photo Show: 1.0mm PVC&TPU inflatable water ball/walk on water roller