These curtain hooks are made from durable & solid plastic material, which makes them durable for long-term usage. Capable of supporting the weight of the curtain, and suited for the thick curtain. These curtain hooks have a size of 1.88 inch 0.9 inch 0.23 inch, and an inside length of 1.29 inch. The package includes a total of 50pcs curtain hooks. To slide easily without jamming and run smoothly, curtain rail gliders must be slightly bigger than the rails. The opening and closing of the curtain will not stop, and it is convenient to pull. Easy to use, just hang the hook's bottom portion on the rail and secure it to the ring through the curtain hook. The curtain track glider hook fits different types of curtain rails or curtain poles, including wooden curtain poles, shower curtain poles, tension rods for curtains, and door curtain poles. Suitable for different types of curtains. Neel Blue 50pcs Curtain Plastic Hooks, Curtain Channel Tracks in White