... big, use it on the water.After people go inside of the ball, inflate it at 85%-90% full, close ... and the water walking ball can hold 3cbm each time, so it’s safe to play inside, the players can enjoy ... big, use it on the water. After people go inside of the ball, inflate it at 85%-90% full, close the ... and the water walking ball can hold 3cbm each time, so it’s safe to play inside, the players can enjoy ...