Polyester No Drill Blinds: LazBlinds patented technology No Tools-No Drill system allow it no need to drill any holes on your window frame, great for Renter, Landlord, and Home Buyer. Easy to Install in 30 seconds. Fit All Kinds of Walls, like woodiness metope, tile marble, concrete wall and rough tile. Inside Mount ONLY. For better internal installation, a standard 2/5 inch deduction is made to the shade width. The actual blind size is 36 3/5" W x 64" H, the unique spring rod can extend 1 inch in total, allow the blind to fit for window width 36.7-37.6 inch, blind height can adjust from 0" to 64". (Pls Note) Minimum 1 1/5" depth of window frame required for inside mount. REAL Blackout Shades: The silver-plated layer inside the cell can completely keep out the sunlight and uv ray. Offering a real dark environment, bringing you a good night's sleep during the day. Perfect for bedroom. Cordless Blinds for Windows: Easy to raise up or lower down. No tangled or exposed cords! Suitable for families with children and pets, guarantees the safety of your family. Non-sagging 3/5'' cell structure not only provides a uniform appearance, but also insulate your home against outside thermal energy in summer and keeps outside cold away from your warm house in winter. Also, our curtains can reduce the noise from outside to provide you a better environment to work or sleep. Introducing the LazBlinds Cordless Cellular Shades, a perfect solution for your window covering needs. These shades are cordless, ensuring safety for children and pets while providing a sleek and modern look. The cellular design not only offers a uniform appearance but also provides insulation against outdoor thermal energy in summer and keeps cold out in winter. With real blackout capabilities, thanks to the silver-plated layer inside, these shades ensure a dark environment, making them ideal for bedrooms. The 'no tools, no drill' design allows for easy installation in just 30 seconds, perfect for renters, landlords, and home buyers. These shades fit window sizes 37'' W x 64'' H, with a 2/5'' deduction from the width for a proper fit. The unique spring rod can extend 1 inch, allowing for a flexible fit between 36.7-37.6'' in width. The care instructions are simple - spot clean as needed. Experience the perfect blend of style, functionality, and convenience with LazBlinds Cordless Cellular Shades.