Obrien Tow Tube, Le Tube 1st released over 25 years ago this tow tube started the tubing craze. This is it's 25th Anniversary size perfectly for one rider, donut shape partially covered with 420 nylon envelope. heavy duty 24 gauge PVC tube, there are four soft flexible handles with EVA knuckle guards on the outer cover for hand comfort. Tube comes with a front quick disconnect heavy duty tow line connector hook. Easy inflate and deflate with one Boston air valve.