Features: Winter insulation window: This window insulation kits is made of thickened PE material, which is more durable and has better insulation effect. It has good tear resistance, wind resistance, toughness and shrinkage, good elasticity, strong tensile strength, no deformation, and waterproof, making it warm in winter and cool in summer indoors. Large size: The windows insulation kits comes in three sizes: 47x63 inches/120x160 centimeters, 63x63 inches/160x160 centimeters, 74x79 inches/190x200 centimeters; includes 1pc of cuttable film and 2 rolls of 0.78inch wide hook and tape, suitable for most window sizes. Reusable: During daily use, simply wipe with a damp cloth to remove dust; to clean, simply remove the door insulation cover from the windows and rinse it clean, then install it back on the windows to dry, foldable, and reusable. Easy to install and disassemble: Hook and windproof hook and fasteners are added to top and side of the winter window insulation material for reinforcement. It can adhere well to the frames and is easy to install using round tape. No drilling tools are needed. When needed, simply peeled off the tape to open the windows for ventilation. Widely used: Indoor plastic window covers are suitable for most window types, such as aluminum window frames, wrought iron grilles, sliding windows, casements windows, bathroom windows, louvers covers, doors, ceiling fans, louvers sealing covers, and more. Specifications: Material: PE Film Type: 1, 2, 3(optional) Size 1: Approx.120x160cm/47x63inch Size 2: Approx. 160x160cm/63x63inch Size 3: Approx. 190x200cm/74x79inch Package Includes: 1 Set Indoor Window Shrink Film Kits note: Reminder: When measuring the size of your window, please include the frames and select a film large than your window.