What utter joy! Larking about on the water just got even more fun. The Walk on Water Ball is a giant six foot diameter inflatable sphere that lets you walk on water (and who knows what people will say about you in 2000 years time). Made from a heavy gauge PVC, the sphere has inset cups on its outside surface enabling it to grip on the water, so as you run and roll around inside it, you automatically propel it along! It's probably the best water toy ever invented. With two of them you can engage in an aqua-sumo face off - who can push the other contestant out of the pool? We recommend using an electric pump to inflate it, but you can just as well use a decent foot pump (from your local hardware store or bike shop). Like all inflatables that aren't life belts, this is not a life-saving device, but it sure is a life enhancing one.