The Water walking ball is very simple and easy to use, just open up the zipper, then the riders enters inside and blow it up, last close the zipper and re-inflate the water ball again, to full capacity, and you off, walking, jumping, rolling and flipping on the water. It can be suitable for portable water, ocean or lake.The size and type can be made as you like after our discussion. And we have strict quality control to ensure every product be of highest quality. All our products are sold at factory price. Besides, we will promise we can do all we can do to make you satisfied. In short, strict quality control + 3-year warranty + competitive factory price + perfect service = Wow!