RV Fixed Window 500 X 350mm Black Aluminum Alloy Round Corner Glass With Fixing RIng For Trailer Camper For Wall Thickness: 26 to 31mm/1.0 to 1.2in Item Type: RV Fixed Window Material: Aluminum Alloy Frame, Tempered Glass, Rubber Seal Ring External Window Size: Approx. 530 x 380mm/20.9 x 15.0in Installation Hole Size: Approx. 500 x 350mm/19.7 x 13.8in Application: Rounded fixed windows protect your privacy and ensure that the sun does not heat the inside of your RV, fully sealed windows can keep your camper cold in the summer and warm in the winter, used in storage pods, living rooms, lounges or any location that needs windows, can be used for your camper, trailer, retrofit, and other projects Fitment: For Camper, Trailer, RV, Mobile Home, Construction Vehicle