[Safety Buckle Design] Not like cup hooks, the safety latch is added to these q hangers hooks outdoor. It prevent hanging objects from falling or sliding out even with vertical installation. No more worry about outdoor string lights being fall off. [High Quality Material] Anti-Rust And Anti - Corrosion: Screw Hooks made of sturdy metal material, the is coated with black coating, which is not easy to break, rust, , windproof or weatherproof.Its service life is prolonged [Easy Use] Q hanging hooks Come with plastic tubes, outdoor screw hooks are easy to install all solid such as walls, wood ceiling, wooden , tree, garden fence, balcony, deck, eaves etc. You can wrench in the screw eye hooks directly. Recommend starting a hole with a drill bit first, made it a little easier. The wing nut driver can help you finish your job much more ease, it can much more time. [Multi-Purpose]Outdoor hooks for string lights works for plants basket,pergola vines , flower pots, wind chime, decorative