QUALITY AND SIZE: Plastic reel of premium material, you won't have to worry about ruining your beautiful curtains; dimensions are approximate. 14mm Curtain Rails have a 14mm wheel diameter What you get: You can get several Curtain Track Rollers (long rails not included) to install large curtains, the exact number is compatible with your choice and use with each of your houses Compatible, enough quantity can also be gifted to your family and friends Smooth sliding: these curtain track rollers can roll freely and slide smoothly inside the track; curtain track is suitable for all kinds of track shapes and slides very smoothly Wide range of uses: this ceiling flexible Curtain rails look good in most environments; curtain rails are great for room dividers, window trim, shower rails, trailers, or the tightest of spaces, adding to your space and giving you instant privacy Simple to install: use Convenient, check the right size for your home Compatible with installation, fit compatible with beam curtain track; the carrier can be easily moved from track to track, from open to closed Color: White Material: Plastic Dimensions: Overall height about 40mm Package Contents: 50 x Sky curtain track only the above package contents, other products are not included. Note: Light shooting and different monitors may cause the color of the item in the picture to be slightly different from the actual item. Measurement tolerance is +/- 1-3 cm. From opening to closing Color: White Material: Plastic Size: Total height about 40mm Package Contents: 50 x Ceiling Curtain Track Only the above package content, other products are not included. Note: Light shooting and different monitors may cause the color of the item in the picture to be slightly different from the actual item. Measurement tolerance is +/- 1-3 cm. From opening to closing Color: White Material: Plastic Size: Total height about 40mm Package Contents: 50 x Ceiling Curtain Track Only the above package content, other products are not included. Note: Light shooting and different monitors may cause the color of the item in the picture to be slightly different from the actual item. Measurement tolerance is +/- 1-3 cm.