The four ends curtain hooks are smooth and burr-free, it won't scratch fingers or damage curtains, easy to use and disassemble. Made of High quality stainless steel, high hardness, strong bearing capacity, thus saving the number of hooks and curtain rings, saving you installation time and additional money. These heavy duty curtain jooks suitable for curtains that have a heading tape, curtain tracks that use gliders with loops and curtain pole rings that have loops. According to the weight of curtain and personal preference for pleats size, provides a variety of installation methods, which can be reused, especially suitable for DIY. Package Contents30 Hooks Various Installation Method: Method 1(small pleats): put one pins of the hook in each of a row of 4 holes in the curtain tape to make a ridged pencil pleat. the hooks hooked onto a curtain pole ring. Curtain pleats small, suitable for small space use, such as bedroom. Method 2(medium pleats): in each row of 8 holes in the curtain belt, a pins is inserted into every other hole and a hook is finished. Insert the second hook again after 4-5 holes, the method is same as above. Curtain pleats medium. Method 3(large pleats): the four pins of the hook are inserted into the holes of the tape 1389 (four holes between the third pin and the second pin) and a hook is completed. After 4-8 holes, insert the second hook again, the method is same as above. Curtain pleats large, curtain pleats look like butterfly shape, fashionable and beautiful style, suitable for large space use, such as living room. Installation hooks method depends on curtain weight and width and your personal preferences. If you like small pleats, you can use method 1. If you like large pleats, you can use method 3. You can even DIY according to your own ideas. Notice: When install the curtains please keep them away from children.