RV Windows 394x445mm Rounded UV Resistant Waterproof with Removable Insect Repellent Net for Camper Engineering Car Item Type: RV WindowsMaterial: Aluminum alloy + tempered glass + rubber Window Dimensions: 480x430mm/18.90x16.92in (please refer to the external dimensions for storage, manual measurement will have an error of 1-2mm, this paragraph does not need to be translated)Installation Opening Size: 394x445mm/15.51x17.52in (the fixed frame needs to be removed when measuring, and the error of 1-2mm in manual measurement is normal)Installation Thickness: 5-7mm/0.2-0.28in or 54-55mm/2.13-2.17in sheet metal mounting (there will be a 2mm error for glue fixing)Application: Tinted windows protect your privacy and ensure that sunlight doesn't heat your motorhome interior. Fully sealed windows keep your camper cold in the summer and warm in the winter, and can be used in hatches, living rooms, lounges or wherever windows are needed to enhance indoor brightness or ventilation windows Applicable: Suitable for campers, RVs, engineering vehicles and other locations that require windows