Extra Glider Curtain Hooks for Curtains2bedding Track 10pk of Curtain Gliders for Curtains2bedding Flat Track. May be compatible with other models 2 options. Curtains can be attached to the hook directly with the skewer end of the glider. Or the curtains can be attached with standard curtain hooks (not supplied) The widest point at the back of the hook is circa 3cm. The narrow part at the fron of the clip is 2cm so it will clip tightly onto the track.