inflatable walking drum roller, fun on water material: 0.8mm pvc size : ... bouncers ,large inflatable toys, inflatable games.2.Water ball, water roller, zorb ball ,swimming pool, boat , bumper boat , water ... for a few minutes.5, If the device's pressure is too soft, check there if there are too ... many leaks and torn holes, or power failure; if pressure is too storng, please block the fan air inlet a ...