Openable Design: this window insulation kit is made of thickened EVA material, which is 75% thicker than ordinary materials, more strong, more transparent, tear resistant, tough; Not easy to wrinkle during installation, no heat shrinks treatment required | Easy to Use: just stick the hook and loop on the window frame to fasten insulation, and then stick the window insulation film (pre sewn) on it, no need to cut, just unzip it directly for ventilation when using, it can guard your window frame | Suitable Size: the package contains 1 piece of 47 x 63 inches/ 120 x 160 cm transparent film and 1 roll of 0.78 inch wide hook and loop tape, suitable for most window sizes and family to spend winter; Our tape is wider, stickier, firm to use | Reusable: just wipe with a damp cloth to remove dust; To clean, just remove and rinse it, then install it back on the window to dry; The material is soft, tough, transparent, and can be folded for future reuse | Wide Application: the interior plastic window cover is suitable for most window types, such as window frames, wrought iron grilles, bathroom windows, shutter covers, doors, whole house attic ceiling fans, shutter seal covers, attic vents