SAFETY BUCKLE & WINDPROOF DESIGN FOR OUTDOOR USE: These screw hooks feature a safety locking buckle that helps prevent items from blowing away in windy conditions. Compared with ordinary ceiling hooks or screw-on cup hooks, they provide greater stability for outdoor string lights, hanging hooks and decorations in patios, terraces and porches Robust metal screw hooks: made from sturdy steel with rust-resistant black coating, these hooks for hanging heavy items support up to 18 kg per hook. Suitable for long term indoor and outdoor use, including ceiling hooks for hanging plants, bird feeders and lanterns EASY INSTALLATION ON WOODEN OR CONCRETE SURFACES - These screw hooks for hanging can be screwed by hand into wood, fences, decks or ceilings. For concrete, brick or masonry, simply pre-drill a hole, insert the included plastic anchor and screw the hook securely Versatile hooks for indoor and outdoor hanging: perfect as hooks for outdoor string lights, Christmas light hooks for the outdoors, patio lamps, hanging plants, wind chimes, bird feeders, cups, and indoor decoration. Ideal for spring and summer outdoor decoration as well as year-round indoor hanging Screw Hooks with Anchors Included: The package includes 32 screw eye hooks (2.2 inches) and 32 plastic extension tubes and 1 butterfly wrench. Designed for light to heavy hanging needs, helping to keep your space organized while adding a reliable hanging bracket