Size and Packaging: the white curtain hook is 2.8 cm in height and 1.2 cm in width, durable and rustless; Package includes 100 pack plastic curtain hooks.Using range: these curtain hooks can be applied on curtains that have a heading tape, curtain tracks that use gliders with loops and curtain pole rings that have loopsSafe to use: no pin points or sharp bits, won't scratch your fingers or getting caught on threads in your header tape; Flexible enough to insert and need not to snap.How to use: just rotate the whole hook through the back of the threads on the curtain, then rotate it through the eyes of curtain ring, easy to install and remove.The design of the shape: solid plastic curly hooks for attaching your curtain to the curtain pole rings, slightly jaggy shape help to keep them in place, holding your curtains up nicely.