Quickly inflate air beds and all types of inflatables with our high-volume StansportA(R) Electric Air Pump. This pump generating up to 0.42 PSI, and reversible airflow makes deflation quick and easy. Operates on 4 D-cell batteries (not included). Multiple nozzle attachments make this pump compatible with all of our products. Quickly inflates air beds and all types of inflatable&';s Reversible air flow for quick deflation Multiple nozzle attachments Operates on four D-cell batteries 4.75" L x 4" W x 4.5" H*Weights and measures are approximations and may vary due to the manufacturing process