Custom Size: Each blinds will be customzied according to your exact window size, and can't be sold after a return. We appreciate customer's precise measures & careful orders, and avoid returns without quality issues. Please provide us with your window size directly without any calculations. We'll double-confirm the size with you via email for a worry-free ordering experience. 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 with no tools-no drill, screws, or brackets. And it can afford maximum 30kg. Fit All Kinds of Walls, like woodiness metope, tile marble, concrete wall and rough tile. Blackout Roman Shades for Windows: Made of beautiful linen fabric with white back coating, which can block out 100% light for complete privacy, energy saving thermal Insulate. Offering a real dark environment, excellent for deeper and longer sleepers. Perfect for bedroom. Cordless Blinds for Windows: Built-in the robust constant force spring-loaded mechanism, smooth and quiet. The cord-free design provides a clean, tangle-free look to the window. Safer for children and pets. Easy to raise up or lower down evenly to gently filter sunlight and stay balanced automatically at whatever position you stop. confirmation. Please keep checking and responding to your Amazon messages until your order information is confirmed. Please feel free email to us by Amazon message if you have any questions and we will respond to you within 24 hours. LazBlinds No Tools No Drill Cordless Roman Shades for Windows, Blackout Thermal Insulated Heat Blocking Window Blinds, Room Darkening Fabric Blinds for Indoor Windows