... . Color: transparent4. Zipper: TI zipper from Germany5. Accessories: Instruction, repairing kit, glue, Lube for zipper Meanwhile, other size for water walking ... 1, Please use lubricant for zip to open the ball; 2, People go inside the ball (1 or 2 at most) 3, Use ... the air pump to inflate the water ball fully; 4, Close ...