This Bestway 16" multi-purpose air pump works with a variety of air beds using three valve adaptors. This unique and versatile pump can also be used to inflate and deflate other items such as rafts, furniture or pool toys. The hammer inflation pump is designed to fill any inflatable by forcing the air both on the upstroke and the down so you actually get your pumping done in half the time. All that you have to do is plug the flexible hose into an inflatable air valve and move the pump handle up and down. This product is made with a high-quality construction and is sturdy and durable for long-lasting use. Double stroke piston pump. Flexible hose. 3 valve adapters. Heavy-duty pump is quick simple to use. Air volume of 2 x 2,000cc (Cubic Centimetres). Easily switches from inflation to deflation. Great for inflatable chairs, beds, boats and more.