[Q-Ring Safety Buckle Design] On the basis of ordinary hooks, a Q-Ring Safety Buckle Design is added, which can fix the screws to the wall more firmly to prevent accidental dropping after the pendant. [Sturdy And Durable] Made of high quality carbon steel, the material is thick and hard, durable and not easy to break; and coated with anti-rust coating, it plays a good role in preventing wind and rust. The total hook length is 2.16'' and the screw end length is 0.7''. [Easy to Install] Simply with a hammer, wrench or drill bit to screw the christmas light hanging screw hook into the wooden or cement wall. When fixing the screw hook on the wall, first drill a hole in the wall, insert the plastic tube, and then insert the hook into the plastic tube. [Multi-Application] Very suitable for daily use, lightweight items can be hung firmly, such as outdoor Christmas lights, lanterns, plants, ropes, chains, feeders, curtains, cups, feeders, flower pots, decorative pendants , etc. Package includes 20 screw hooks and 20 expansion tubes