E-Z Air Fighter helps open car doors more efficiently by separating the door and the frame enough for a car-unlocking tool to be used. Simply inflate by squeezing the pump then release the valve to deflate the wedge. Made of eavy duty vinyl that will not scratch paint or glass. Deflated thickness is 0.08″, maximum inflated thickness 2.75″. 6 1/4″ L x 5 1/2″ H