Q-shaped buckle design - Unlike ordinary ceiling hooks, the safety latch is added to prevent hanging items from falling or sliding even with vertical installation. No need to worry about the string lights falling off anymore. Premium Material - The screw hooks are made of high quality solid steel with anti-rust, sun and water resistant coating. Easy to Install - Comes with plastic tubes, the tumbler hooks are easy to install on any solid surface such as walls, ceiling, wooden beams, trees, fences, eaves , etc. You can hammer the hooks directly or using a wrench. Best Value for Money - Outdoor hooks work for hanging string lights, plants, flower pots, decorative Christmas lanterns, fairy lights, festival decoration lights, curtains, bird feeders and birdcages, ropes, chains, etc. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store