The Westcott Box comes with a fabric shell with either a white or silver interior. Both boxes have an internal baffle, exterior diffuser panel, four support rods and a storage bag. The flaps in back are made of a flame-retardant material to withstand heat and have hook and loop tape tab closures. If overheating is a concern, the Box's unique design allows heat to escape by opening the flaps in the back of the unit.