【HOW TO CHOOSE THE SIZE】:For example, if your window is 23“ wide and less than 72” high; Inside Installation: blackout shades Width = 23“; blackout shades Height = 72”. Outside Installation: blackout shades Width = 23“ + 4” = 27“; blackout shades Height = 72”.
Smart Motorized Blackout Blinds with Remote, Alexa Compatible, 34″x72″ White
Suitable for indoor Windows, bedrooms, living rooms, bathrooms, kitchens, offices, etc. In addition, the wireless design is friendly to your family, children and pets. 【Smart Motor, Direct Connection with No Worries!