Features 1、Push Pull Design: Rounded corner windows with sliding opening, making your camper cool in the summer and warm in the winter, providing a comfortable interior environment. 2、Waterproof: The frame of the window has a waterproof rubber ring to ensure a complete seal and waterproof performance, and there is a drainage hole under the frame to ensure the flow of rainwater. 3、Strong Strength: Push pull window frame is made of high strength aluminum alloy and glass, which is strong and safe, effectively resist UV, sound and heat. 4、Smooth Polished: The exterior of the window frame is polished smooth with a black powder coating to provide a good touch and resist oxidation, even in outdoor environments. 5、Application: Window can be used in storage compartments, living rooms, lounges or wherever windows are needed, and to enhance interior lighting or for ventilation. Specification Item Type: RV Push Pull Window Material: Aluminum alloy, rubber, ABS, tempered glass Window Shape Size: Approx: 535x335mm/21.06x13.18in Installation Thickness: Approx: 5mm-7mm/0.2-0.27in or 53mm-54mm/2.08-2.12in sheet metal installation (there will be 2mm error for glue fixation) Installation Opening Hole Size: Approx: 500x300mm/19.68x11.81in, used for vertical or horizontal installation Application: Windows protect your privacy and ensure adequate sunlight does not heat the interior of your RV. Fully sealed windows keep your camper cold in the summer and warm in the winter Application: Suitable for camper, RV, engineering car and other any need for windows Package List 1 x Push Pull Window 1 x Fixed Frame 1 x Package of Water Guide Hole Plug (Random Number) 1 x Package of Fixed Screw (Random Number)