Q hanger hooks are made of high quality ABS material with stainless steel screws. They are robust and durable, rust proof and wind proof, and can hold up to 6 lbs. Suitable for indoor and outdoor use. Package includes 30 hooks, 30 screws, and 30 extension tubes. Hook height: 29 mm (1.14 in). Screw length: 22 mm (0.86 in). Extension tube length: 25 mm (1 in). Easy installation - Wall mounting: drill holes, insert the expansion tubes, then secure hooks with a wrench or screw. - Wood mounting: use a Phillips screwdriver to drive the nails into the beam or hammer the nails directly into the wood. Space saving design - By hammering the hooks into wooden beams, you can wind fairy lights neatly and without tangling, helping create a festive and inviting atmosphere. Use scenarios - Indoor: mount along walls or window frames for Christmas lighting or decorative strands. - Outdoor: install on fences, posts, pergolas, or garden walls to outline a seasonal display. - On wooden beams or ceilings in living spaces or outdoor structures to neatly organize light strips and reduce clutter.