Made of 100% polyester material fabrics with reinforce thermal insulated coating, feeling soft and smoot. Easy to clean. Blackout blinds block 100% of sunlight and UV rays. The thermal backing reduces the loss of room heat and cold through the windows in winter and summer, helping to reduce your energy bills. 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. To make sure to cover the entire window, outside mount shades need to be 4 inches wider than the windows width. Order exact width for inside mount. Don't worry window blinds height, it can adjust from 0" to 72". Pls Note: Fabric width will be 1" narrower than the size of the shade.
