Plastic curtain hooks come in many shapes and sizes. They are always white and blend in well with the curtain heading tape. The basic plastic hook is merely a functional hook to attach the fabric heading to the track, pole or valance track.
There is another type of hook called a glider hook. These curtain hooks are specific to certain tracks and are part of the track's runner system. Valance track systems usually come with their own hook that is also the slider.
It is best not to use plastic hooks in a very sunny position as they may become brittle after a period of time.
Plastic curtain hooks are only suitable for light or medium weight curtains.