[Size 16" * 16"] Jack Boss RV skylight cover is designed specifically for camper skylingt window. Universal 16" * 16" RV vent is suitable for most RV, bosts, trailers and home. [Triple-Layer Protection] This camper vent cover is made of 3 different materials. This camper window cover has a reflective silver outer layer to block harmful sunlight. A insulating layer in the middle to prevent heat transfer, and a black inner layer for added privacy. [Stay Temperature All Year Round] RV skylight shade insulation cover blocks heat exchange between the inside and outside. This RV vent insulator helps keep the interior cool in the summer and warm in the winter. [Easy to Install] This magnetic window shade comes with pre-attached Velcro for secure installation on your 16 by 16 inch vent. This sunroof cover built-in magnets design, and you can decide how much light you want by flipping the hood up and down. [Tips]: RV skylight shade feels sturdy and durable and keep the light out.And make sleep much easier.Please measure the size you need before purchase, if you have any questions, please contact us. The size of this RV skylight insulator is 16" * 16". This camper sunroof cover is suitable for most RVs, bosts, trailers and houses. Jack Boss RV air vent cover is made of 3 different materials and it can prevent harmful sunlight and UV rays from entering the RV. This camper skylight cover also preventing heat transfer. The black inner layer for added privacy. This RV magnetic window shade comes with multiple Velcro strips to make your installation easier and faster. The magnetic design is able to determine how much light you want by flipping the hood up and down.