RV Baggage Door UV Proof Square Rounded Corner Black Compartment Storage Door for Camper Motor Caravan Item Type: RV Baggage DoorMaterial: Aluminum alloy, rubber, ASADoor Surface Size: Approx. 520 x  520mm / 20.5 x 20.5in Installation Opening Size: Approx. 500 x 500mm / 19.7 x 19.7in, R70-4 Applicable Installation Thickness: Approx. 25-55mm / 0.98 - 2.17in Application: Heavy duty storage door with safety lock, 500 x 500mm large opening to accommodate large objects, UV protection and no discoloration for a long time, and can be used for horizontal or vertical installation Suitable to any required storage door such as RV, trailers, camper, motor caravan, etc.