... .5M, 2.8M,3M,3.2M Zorb ball,rolling ball,water sphere High quality at competitive price,timely deliveryZorb ball,rolling ball ... them with an air compressor and the ball bounces inflatable water ball: 1) Dimension: with diameter 2 meters. 2) Material: ... and environmentally friendly3) Widely used for playing center, amusement park, water games, holiday events, swimming pool and seashore scenic spot. 4 ...