The Airbedz Inflatable Wheel Well Inserts is sold in sets of two, and will convert your Airbedz truck bed mattress into a standard air mattress. This will provide you with other uses than just the truck bed. Inflate the wheel well inserts and secure it to the mattress with the hook and loop attachments. Now the mattress can be used in a tent or as a spare mattress around the house. The inserts utilize a universal air fill valve for convenient filling. An air pump is not included with the inserts.