Quality and size: The plastic of quality material, you won't worry about your beautiful curtains; The dimensions are approximate.The diameter of the 14 mm curtain rail is 14 mm What do you get: can you get curtain track rollers (not including long tracks) to fit curtains, for , as as for each of your houses, enough numbers to also give to your family and Smooth sliding: these curtain track rollers can roll freely and smoothly inside the track; Curtain rails are applied in a variety of track shapes and very smoothly Versatile : this ceiling flexible curtain rails look in environment; Curtain tracks make good room compartments, window decorations, shower tracks, trailers, or compact space increase your space, giving you instant privacy Simple installation: easy to , check the suitable size of your home for installation, suitable for beam curtain track; The easily moves from track to track, from open to Colour: white Material: plastic Size: height about 40mm Package Contents: 50 x Ceiling Curtain Track Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.