Features 1、Sturdy Material: The frame of the round corner window is made of high strength aluminum alloy, coated with black powder to ensure wear resistance and oxidation resistance, long service time in the outdoor environment. 2、Water Resistant Window: The fixed window is equipped with water resistant rubber ring to ensure complete sealing and water resistant performance to keep your RV cool in summer and warm in winter. 3、Tempered Glass: The 4mm thickness black tinted glass ensures the overall robustness and safety, and the colored glass effectively resisting heat to prevent overheating RV inside. 4、Easy to Install: With attached retaining rings and screws, with no exposed external fasteners, make the external lines of the window more smooth and provide a solution for your leaking, broken and unsatisfactory window or broken walls 5、Various Uses: The replacement window is suitable for storage compartments, living rooms, lounges, also for trailers, RVs, construction vehicles, for repair and refit. Specification Item Type: RV Fixed Window Material: Aluminum Alloy Frame, Tempered Glass, Rubber Seal Ring External Window Size: Approx. 530 x 430mm/20.9 x 16.9in Installation Hole Size: Approx. 500 x 400mm /19.7 x 15.7in Application: Rounded fixed window protect your privacy and ensure that the sun does not heat the inside of your RV, fully sealed window can keep your RV cold in the summer and warm in the winter, used in storage pods, living rooms, lounges or any location that needs window, can be used for your RV, trailer, retrofit, and other projects Fitment: For Trailer, RV, Mobile Home, Construction Vehicle Package List 1 x RV Fixed Window 1 x Fixing Frame 1 x Screw Package (10Pcs)