2 or 3 riders, depending on size. Made from PVC and nylon. Choose from available sizes. Kwik-Connect for easy hook-ups. 1 year limited warranty. 4 nylon-covered handles with knuckle guards. The Airhead G-Force Inflatable Ski Tube has a heavy duty Kwik-Connect that lets you hook up easily and securely so you can get the fun started. It's designed with topside stabilizer fins and has four nylon-wrapped handles with knuckle guards, offering a sure and comfortable grip. The PVC bladder is fully covered with double-stitched nylon, creating a durable design that's meant to offer years of enjoyment. Plus, this tube has a speed valve that makes inflation and deflation extremely convenient. Size: 78L x 75W x 11H in..