1、Push Pull Style: Sliding opening for enhanced interior light or ventilation, keeping your camper cool in the summer and warm in the winter. 2、Unique Design: The inner frame has 3 modes of application for insect protection, privacy, or full opening, and can be used in hatches, living rooms, lounges, or anywhere a window is needed. 3、UV Resistant: Upgraded design ensures that the windows are strong and secure overall and is resistant to UV rays, sound and heat. 4、Waterproof: The window frames have waterproof rubber rings to ensure complete sealing and waterproof performance, and drainage holes under the frames to ensure rain water run off. 5、Anti Oxidation: Round corner sliding window is made of high strength aluminum alloy and tempered glass, and the frame exterior is black powder coated to ensure resistance to oxidation.