Aluminum Alloy Round Corner Window with Acrylic Glass MG17RW-AG For RV Caravan Motorhome Features: Inner frame and outer frame can be used together or separate Equipment with installation frame, simple install With good heat insulation and sound-proof performance Standard windows for wall thickness 25-35mm(1-1.4inch) or 32-42mm (1.3-1.7inch). Please when you make the order, please choose the right wall thickness for your order and leave us a note for it. Specification: Brand: Maygood Model: MG17RW-AG Outer frame: Hight quality aluminum alloy. Surface is treated by electrostatic spraying. Black color. Inner frame: Organ type curtain and mesh. Narrow border body. Anti-UV transparent grey two-layer hollow acrylic glass With E4 certificate and 3C With telescopic stays Sizes: There are 27 available sizes, please see our listing for all the sizes that we can supply you. It is ideal to use for RV Caravan Camper Mobile Motor House etc. Destination custom duty is not included in the listing price; it is the customer's responsibility to pay for custom duty if any.