Quality and Size: Plastic rollers made of high-quality materials, you don't have to worry about damaging your beautiful curtains; Dimensions are approximate. The wheel diameter of the 11mm curtain rail is 11mm What you can get: Can you get multiple curtain rollers (excluding long rails) to install large curtains? The specific quantity is available for you to choose from, and it can also be used in every room of your house. A sufficient quantity can also be given to your family and friends Smooth sliding: These curtain rollers can roll and slide freely in the track; The curtain guide rail adopts a variety of track shapes, and the sliding is very stable Multiple uses: This type of ceiling flexible curtain rail looks good in most environments; Curtain track is a great room divider, window decoration, shower rail, trailer or the most compact space, which can increase your space and give you instant privacy Easy installation: easy to use, check the installation that suits your home size, suitable for beam curtain track; The carrier can be easily moved from track to track, from open to closed