【Day & Night Comfort】Transform your space with these dual-layer shades. Premium fabric alternates between sheer and privacy positions, giving you perfect light control throughout the day. 【Quality That Lasts】Upgraded aluminum headrail and 38mm tube prevent sagging. Premium polyester fabric resists dust and static. Easy maintenance - simply wipe clean with a damp cloth. 【Smart & Safe Design】Cordless mechanism stops at any height. Child and pet safe certification. Protective bumper strip prevents window frame damage. UV protection keeps your furniture looking new. 【How to choose a correct size】Example your window meas 35"W x 72"H:①INSIDE MOUNT: Window Width deduct 0.25" is Blind width. Blind Width≤35"-0.25=34.75"; Blind Height≥72". ②OUTSIDE MOUNT: Plus at least 4" is blind width, Blind Width≥35"+4"=39"; Blind Height≥72+4=76".【Pls Note】Fabric width will be 1" narrower than the size of the blind. 【Quality service】The package includes an blind, an installation guide, several installation hardwares. If any parts are missing or damaged upon delivery, we will send free replacements.