NRS Cool Cats - another way to spell Fun! Nimble, maneuverable and made from tough, lightweight urethane-coated nylon. These 13' cataraft tubes give you a play boat that's a blast to run!The 13-foot length lets you spin on a dime and helps you pick your way through even the rockiest boulder garden.31 oz. polyurethane-coated, high-tenacity 1680-denier nylon material is super abrasion and puncture resistant for trouble free performance.23-inch diameter tubes provide plenty of flotation for packing a passenger and overnight gear.Three inflation chambers, with top quality Leafield C7 valves, in each tube give you abundant safety margins in an emergency.A 27" rocker on the tubes help you power over waves and assist hole-busting and surfing abilities.Eight 2" stainless steel D-rings on each tube give you abundant tiedown points for securing the frame.With a passenger for day trips or light-duty camping gear for multidays, the NRS 13' Cool Cat is guaranteed to keep a smile on your face and a laugh on your lips!These tubes work best with the Sport Cat. The 66" wide model gives you approximately the same internal width between the tubes as the 72" yoke-style frames.1-year warranty on workmanship and materials.Frame sold separately.