Mable four rider towable tube from Sportsstuff. Mable comes equipped with two towing points, numerous handles and EVA foam pads for added comfort. This is surely a tube that will provoke interest and intrigue, since there's nothing quite like MABLE on the market. Double-Stitched Nylon Full Cover. Heavy-Gauge PVC Bladder. Multi-Speed Valve. Self-Bailing Drain Vent. Reinforced Tow System. Inflated Length: 91 inches. Inflated Width: 105 inches.