Roll-a-Cot ® is tailored for comfort:Four sizes in fast-drying blue-mesh for river runners, five sizes in two-layered green-fabricto hold your air mattress. All nine models roll into a portable 5" diameter bundle with a special carry bag that is also a cot organizer. Quality made with- Large diameter rails for firmness, Reinforced diagonals for strength, Tensioners for top fabric, No painful end bars, Fast set-up design. Made in USA with Oregon Aluminum, Washington labor, Idaho moldings. Patent #51095564. See Camp Time ® Story.