Easy Installation: The 20 pack Christmas light hanging hooks are quick and easy to install, you can use a Phillips screwdriver to screw the nail into the wooden beam or directly hit the nail into the wooden beam with a hammer in width. Widely Used: Perfect for everyday use of safely hanging lightweight items such as outdoor holiday lights, dish racks, potted plants, feeders, curtains, ropes, chains, cups, pots, chimes, light fixtures, chandeliers, etc. High quality: wind and rust resistant hangers for lights and other hangers of outdoor yarn throughout the year. The open loop ensures quick release but an extension provides complete security, the hanging hooks can hold up to 18 kg, suitable for indoor and outdoor use. Size: total length 3.5 cm can fit many items, 2.2cm screw length is firm. The opening hook is 0.7 cm.