There are a lot of cheap imitations flooding the market, they adopt recycled materials plastic tracks (easy to broken), fakedouble-sided adhesive (unglued), thinner fabrics and interior workmanship, pls kindly buy cautiously. This is for a pair of curtains, for two car side windows (left+right). Size:50L Curtainsize:50cm x 47cm, suitable for 44-50cm Height Auto Window Rails length: 50cm, you can cut by yourself if need Friendly Tips: 1.This is not customized curtains, it only have 4 different sizes, so the effect is different for each car. 2.Considering the rail viscosity,a fter install the rails, p lease install curtain after 24 hours. 3.The size is measured by hands, please allow minor error (1-2cm) of measurement. 4.Photo color might be a little different from the actual product due to color display of different monitors.