Specification Brand : Pumkust BulletPoint1 : Custom Shade Solutions: Width range: 10-102 inches; Height range: 20-98 inches.Please measure your window opening to the exact 1/8". Window depth ≥ 3 inches can choose inside mount, shade width = window width - 1/4 " shade height = window height + 1" to fit your window frame. Window depth <3 inches choose outside mount, shade width = window width + 4 " shade height = window height + 4" for better window coverag. BulletPoint2 : Each custom product is made specifically to the specifications of your order. SO PLEPLEASE READ THROUGH ALL THE SELECTION GUIDES AND MEASURE YOUR WINDOW CORRECTLY SO YOU CAN CALCULATE THE FITTEST SHADES SIZE. MAKE SURE ALL INFORMATION IS CORRECT before you proceed to purchase..If the width and height ratio does not meet "width≥height/4+9 inches", please contact us before placing an order. BulletPoint3 : Material AND MOUNT: it can effectively blackout sunlight and provide heat insulation. And it's easy for cleaning. You can wipe the dust easily with a dry or damp rag. installation brackets, hardware, mounting video, and instructions are provided for quick and easy mounting.Great for bedroom, living room, bathroom, kitchen, French door, and office. BulletPoint4 : Silent and stable mechanism: Equipped with high-quality aluminum alloy upper rail and thickened color-coordinated cassette box, the Robust spring-loaded mechanism has passed 5,000 times usual lifting or pulling down tests for each blind and makes it easy to raise and lower the blind evenly and smoothly back up every timeThe cordless design provides a clean, tangle-free look to the window and creates a safer environment for children and pets; it will stay at whatever position you stop. BulletPoint5 : Logistics and Service: Kindly be advised that shipping may take some time, as it is dependent on the delivery location and the confirmation of the shade order size. Our dedicated customer service team will reach out to you within 24 hours through Amazon site messages, personal email, or cell phone text messages to verify the size of the shade. To ensure a prompt response within 24 hours, please remember to provide your contact information when placing the order. CareInstructions : Spot Clean Color : Veins White ControlType : manual ExternallyAssignedProductIdentifier : 9425509493725 ExternallyAssignedProductIdentifier1 : 704334397705 ExternallyAssignedProductIdentifier2 : 0704334397705 FabricType : Polyester IncludedComponents : Mounting Hardware,User Manual ItemName : Pumkust Custom Size Cordless Roller Shades for Windows(Fits windows20-78), Blackout Roller Window Blinds with Thermal Insulated for Office, Living Room, Bedroom, Kitchen, Veins White ItemShape : Rectangular ItemTypeKeyword : window-treatment-roller-shades Manufacturer : Pumkust Material : Polyester Material1 : Aluminum Material2 : Polyester ModelName : PUMCMC-ROL ModelNumber : PUMCMC-ROL MountingType : Inside Mount/Ouside Mount NumberOfItems : 1 NumberOfPanels : 1 Opacity : Blackout OperationMode : Manual PackageLevel : unit PartNumber : 19871 PatternType : Solid ProductDescription : Pumkust Custom Size Cordless Roller Shades for Windows(Fits windows20-78), Blackout Roller Window Blinds with Thermal Insulated for Office, Living Room, Bedroom, Kitchen, Veins White ProductSiteLaunchDate : 2023-02-24T00:00:00.000Z RecommendedUsesForProduct : Indoor RoomType : Living Room RoomType1 : Bathroom RoomType2 : Dining Room RoomType3 : Office RoomType4 : Kitchen RoomType5 : Kids Room Size : 20"W x 20"H SpecificUsesForProduct : Home Décor SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SupplierDeclaredDgHzRegulation3 : not_applicable SupplierDeclaredDgHzRegulation4 : not_applicable SupplierDeclaredDgHzRegulation5 : not_applicable UnspscCode : 52131600 WaterResistanceLevel : not_water_resistant