... level area, inflate the top ring and fill with water. The pool walls rise with the water Usage:For all ages, Used all ... the top-grade water ball, inflatable pool, children's boat, Adult's swan boat, inflatable advrtising, carousel, inflatable slide, inflatable castle, etc to worldwide market ... 10 minutes to inflate (Stay inflated all day).An event with 5 water balls = 30 mins set-up, 10 minutes pack ...