This inflatable tube s unique, tapered profile prevents submarining and provides a comfortable riding position while making it easy to climb onto from the water. Four nylon-wrapped handles and neoprene knuckle guards provide outstanding grip. Durable 30-gauge virgin PVC bladder is fully encased by a double-stitched nylon cover with a reinforced internal tow harness. Boston valve for fast inflation. Material: Double-stitched nylon cover, 30-gauge virgin PVC bladder Number Of Chambers: One large Dimensions: 60" dia. (deflated) Valve Type: Boston valve Rider Capacity: Up to two Accommodations: Four nylon-wrapped handles and neoprene knuckle guards Towing Attachment: Kwik-Connect Warranty: One year