5-Layer Construction for Superior Blackout & UV Protection: The upgraded design combines a heavy-duty waterproof Oxford blackout fabric layer with a high-reflectivity silver layer. These multi-layer composite blocks sunlight and heat more effectively, creating a darker, cooler interior for rest, and enhanced with diamond-embossed technology, it maintains its shape and durability every summer to winter Foldable RV Blackout Cover with 10 Strong Magnets: The trailer door curtain has built-in magnets on edges for easily flipping up to customize the shading height: keep it fully open to enjoy the view, partially closed for soft light, or completely covered for total blackout-without the glare or hassle of traditional RV window blinds. The Strong magnets stay in place even on the bumpy road.this rv blind also Ideal for lower A/C workload  Enhanced Privacy Protection: Feel secure at crowded campgrounds or well-lit parking lots. The magnetic window cover creates a solid barrier against outside views, so you can relax, change, or sleep in comfort-no more curtains with light leaks at the seams, or worries about prying eyes. An essential RV accessory for campers Universal Size & No-drill Installation: The RV window sun shade measures 16 x 25inches and fits most RV camper trailers door window and bathroom skylight. Easily use the adhesive hook and loop strips in the package to fix and not damage your RV door window or RV skylight frame. Note: Please make sure your window size is slightly smaller than the black out shade for RV window door Thoughtful RV Accessory: The RV door window cover is a practical accessory for RV residents. It enhances the living experience, improves privacy while travelling, and helps reduce energy costs through added insulation Thermal Insulation Benefits: The multi-layer construction provides effective thermal insulation, helping to keep your RV cooler in summer and warmer in winter, reducing the need for excessive heating or air conditioning and improving overall energy efficiency Keep your RV cooler and darker with this 5-layer reflective RV window shade designed for easy installation with adhesive hook and loop tape. This RV window shade is 25x16inches, compatible with most travel trailers' window doors. We upgraded the hook and loop tape for better stick and a stronger magnet for keeping in place