The O'Brien Hammer Head 3 Towable Tube is a fun ride on tube that allows three riders to try to hold on as you spin them around on the water. Built with super durable 28 Gauge PVC and a Fully Covered 420/840 D Nylon, you can expect this tube to stand the test of time. The EVA Pads as well as EVA Knuckle Guards ensure that the riders are comfortable as they're holding on tightly. When people want to ride the O'Brien Hammer Head 3 Towable Tube, help bring a smile a little quicker to their face with the use of the Boston Valve. The O'Brien Hammer Head 2 is a great ride for all ages! [+]