Big boat tube for 1 to 4 people. Large center hole also allows 2 children or a parent and child to ride together or ride sitting on the edge with feet in the middle. Provides a fun ride with more stability and control than a round towable tube. Air cushioned floor for comfortable ride. Features heavy duty nylon partial cover, heavy gauge PVC bladder, double webbing foam handles with knuckle guards, reinforced towing system. Speed Valve for fast inflation and deflation, zippered valve covers. Dimensions Inflated 69" x 69", deflated 79.5" x 78".