DIMENSION: The white curtain hook has a length of 18mm, bottom diameter 9mm, a cylinder diameter of 6mm, and a spacing of 3mm between the top and bottom. Package includes 50 pieces white curtain slider hooks, enough quantity for your daily use. COMPATIBILITY: Curtain Track Rollers fit for 9mm Wide Curtain Track Rail. Home Decor Curtain Decorative Accessories. Fit for window glider design. Widely used in windows, bedrooms, dining rooms, sliding doors, such as fixed curtain panels, room dividers, shower bathroom, curtains, gauze and hanging cloth. MATERIAL: The track curtain hooks, curtain rail track hooks slider for window and shower curtain are made of high quality plastic. These curtain rail gliders won't stain your curtains due to rust compare to metal ones. EASY TO USE: This white plastic curtain track carrier glide rollers is very convenient to install and use. You only need to insert several hooks into the curtain track at one end, and hang the curtain at the other end, so that the curtain can slide smoothly on the track, which is convenient and fast. SWIPE EASILY: These curtain clips are mainly used to hold windows curtain. Each curtain rail hook is specially designed to ensure an easy transition from track to track. The curtain gliders are high quality and offer effortless gliding through the curtain track sets. These curtain track glider hooks make curtain opening and closing off more easily. Product Description 50pcs Carrier Glide Rollers, Track Rollers Plastic Drapery Rail Sliding Glider for Windows Shower Curtain Tracks, 9 mm Proper size: The length of the plastic curtain slider is 18mm, the width is 9mm. These curtain sliding hooks run smoothly, durable and easy to open the curtains. Sufficient quantity: package includes 50 pieces white curtain slider hooks (not including long tracks) , suitable for window curtains, door curtains and shower curtains (Note: small iterm, please keep them far away from kids).