1、Rustproof Frame: High strength aluminum alloy window frame is coated with black powder to ensure that the long term use of anti oxidization. 2、Good Sealing Performance: The whole frame ring of the round corner window of the RV is equipped with rainproof rubber rings to ensure complete sealing and water proof. 3、Block Ultraviolet Light: 4mm thick black tempered glass is very strong, and colored glass can effectively resist ultraviolet light and heat to prevent overheating inside the carriage. 4、Applicable Location: Fixed window can be applied to the storage compartment, the door, the top of the car, the living room, the lounge or any location that needs a window. 5、Fitment: This fixed window is suitable for trailer RV mobile home construction truck, no exposed external fasteners, so that the external lines of the window more smooth. Item Type: Fixed RV Window Material: Aluminum alloy frame + tempered glass + rubber seal ring Window Dimensions: Approx. 530 x 330mm / 20.9 x 13in Installation Hole Size: Approx. 500 x 300mm / 19.7 x 11.8in Applications: Fixed Window with rounded corners can protect your privacy and ensure that the sun does not heat up the inside of your RV, fully sealed Window can keep your RV cold in summer and warm in winter, used in storage pods, living rooms, lounges or any location that needs Window, can be used for your trailer retrofitting and other projects Application: It is suitable for any location that needs Window, such as trailer RV mobile home engineering vehicle 1 x Fixed RV Window 1 x Fixed Frame 1 x Pack of Screw (8 pieces)