Amdirect Car Travel Seat Extended Mattress Inflatable Mattress Car Inflatable Bed Material: PVC Material: PVC 2 Colors: Dark Grey, Camel Durable car equipment for comfortable travel sleeping for kid and patent, or create more room for romantic intimate motion in vehicle Power supply must be automobile cigarette lightner 12 Volt DC. This pump is intended to inflate/deflate items. It is not designed for continuous use. When using the air pump, pls rest for 5miniutes when unflate with small adaptor in every 5 minutes, and rest 5 minutes when inflate with with small adaptor in every 5 minutes.