PROTECT YOUR RV INTERIOR: The Dumble RV Supplies Extra-Large RV Sun Shade is a window shield that keeps the interior of your RV, camper, or travel trailer protected; To install, use the adhesive-backed hook and loop attachment tabs on the sunshield and the surface you wish the RV door shade to be fastened to; Can also remove screws on your window to install through this RV door window cover and back into the window for permanent fastening STAY COOL: Use to block out harmful UV rays from the sun and keep the temperature regulated in your RV, camper, or trailer; Flexible polypropylene with air-filled cells between 2 layers of reflective film (double-sided reflective material) to naturally insulate your RV and keep out the heat or cold SLEEP IN: It is hard to sleep when there is a blinding light coming through the window, but this RV skylight insulator keeps out light; To block all light, fit the RV sunshade snugly around the entire window; Keeps out most light but not intended as a blackout shade VARIOUS APPLICATIONS: Use on your RV or camper entry door, bedroom window, or the shower skylight; Great for long road trips and hot summer days to keep the interior of your RV protected and your passengers cool EXTRA-LARGE SIZE: Package includes (1) 62-inch x 30-inch (157.5cm x 76.2cm) extra-large size reflective window cover; Measure your window to ensure correct fitment; Camper sun shade collapses for simple storage