The HO Solo-X tube is a nimble, two person deck-style tube that excels as an aggressive ride for tackling big airs and quick whips. Riders lay on their stomachs and are supported in the turns by the inflatable side bolsters. The Solo- X will last for seasons!. Key Features of The HO Solo X Tube: Maximum of 2 riders Nylon Denier Weight: The denier weight of nylon refers to the size of the yarn used in the weave of the material. 840 denier nylon is the strongest and highest quality material used to reinforce our largest and toughest towables. PVC Bladder Gauge: 30 gauge PVE designates the highest quality, highest durability bladder material used in the towable industry. All PVX used in HO products is pure virgin vinyl Tube Weight: 17LBS Numbers of Boston Valves: 1 Numbers of Steam Valves: 2 Quick Tow Attachment: This allows you to quickly attach the tow-rope to the tube.