The Intex High-Rise Airbed is engineered with the Dura-Beam Technology, which is comprised of thousands of high-strength polyester fibers, resulting in amazing durability for years of lasting comfort, the Comfort-Plush Series provides enhanced comfort, stability and support. Unlike traditional airbed construction, high-strength polyester fibers do not stretch over time. A built-in pump will inflate and deflate the airbed with the switch of a button and can be used to adjust your desired level of firmness by turning the dial.