Easy Installation: These plastic curtain hooks are a breeze to use. Simply hang the bottom of the hook onto the rail and thread your curtain hook through the ring. Useful Curtain Accessories: The package contains 25 white curtain track gliders. These hooks are special and provide a complete decorating opportunity. They’re convenient for your daily life. Durable Materials: Made of sturdy and durable plastic, these curtain track hooks can bear the weight of your curtains without any issues. Smooth Gliding Action: The sliding hooks move effortlessly along the rail, ensuring that your curtains open and close smoothly. Universal Size: Each curtain slide hook is approximately 2.8cm in height and 1.2cm in width. This size fits most rails and curtains.