Wow Big Boy Racing Ski TubeWow Big Boy Racing Ski Tube A big boat tube for big guys and girls or for several young kids. This inflatable towable can be ridden by 1 4 people. The large center hole also allows for two young kids or a parent and their child to ride together or ride sitting on the edge with your feet in the middle. A traditional concept that provides a fun yet stable ride. The arrowed shaped design allows for more stability and control than a round towable tube.