These strong, durable curtain hooks are designed with Easy Glide technology to allow smooth operation along curtain tracks. This glider can be used both to hook the curtain directly on to hide the track or can be used with additional curtain hooks to allow the curtain to sit below the track. Alternatively, a curtain can be attached to the glider, with a loose curtain liner being attached with additional curtain hooks. These gliders are suitable for both PVC and Aluminium Streamline curtain tracks. New Edge Blinds Pack of 20 Plastic Sliding Curtain Track Hook Gliders in White