Package Contents:You will receive 30 pieces curtain track rollers, enough quantity to fully assemble your curtains, reusable. (Please check the dimensions carefully before purchasing.) Silent Rollers: Silent wheels are covered with rubber which glides smoothly and quietly and creates a quiet and elegant living environment for you.Steel rings, excellent load bearing, rust proof and strong. Easy to install: Choose a suitable curtain rail and slide the curtain roll from above on the curtain rail, suitable for rod curtain rails, the carrier moves easily from rail to rail, from open to close. Fits 360 Degree Rail:The curtain track roll is designed to be hung on a 360 degree rotating rail suspension, which is fashionable and classic. Wide range of applications:Curtain track sliders are suitable for curtains and rod curtains, suitable for most curtains that need curtain hooks. Can be used on most curtains, shower curtains, curtains, door curtains and French curtains.