... use Zorb Balls on water (Hydro Zorb).Zorb Ball also named Inflatable grassplot ball, Inflatable roller ball, land ball, Inflatable human hamster ball, giant inflatable human hamster ball etc. Zorb Ball is ... , colour, logo printings, etc. 2. Material: 0.8-1.0mm PVC or 0.8-1.0mm TPU, lead free, waterproof, fireproof ...