AOSKY Cordless Roller Shades Blackout Blinds for Windows (23" W x 72" H, Black) Room Darkening Rolled Up Shades with Spring System, UV Protection Window Shades Door Blinds for Home and Office

【Excellent Material】：Blind Size: 23"W x 72"H, Fabric Size: 22"W x 72"H. Fabric is 100% polyester material fabrics with reinforce thermal insulated coating, feeling soft and smooth. No burrs, strong wear resistance, and easy to clean.Our blackout blinds block 100% of sunlight and UV rays. The thermal backing reduces the loss of room heat and against cold through the windows in winter and summer, helping to reduce your energy bills.
【New Innovative Design】: The cordless design is safer for kids and pets. The cordless roller blinds are more convenient than corded roller blinds. Built-in the robust spring-loaded mechanism, which has passed 5,000 times usual lifting or pulling down tests for each blind, You can stop the shade wherever you want smoothly. Open the roller blind, pull it to the place; Shut the roller blind, you can gently pull the buckle, and the roller blind would automatically close.
【How to choose right size】：To make sure to cover the entire window, outside mount sha