HIGH QUALITY MATERIAL - Made of high quality steel with rust proof coating. Hangs up to 40 lbs. SAFETY BUCKLE DESIGN - Windproof and squirrel-resistant. Hanging items will not fall out. Easy release mechanism. Clips securely hold Christmas lights and can remain installed year after year. EASY TO INSTALL - Screw-in design allows for quick installation on wood surfaces. Ideal for patios, decks, ceilings, trees, fences, and more. WIDE APPLICATION - Suitable for hanging Christmas lights, wind chimes, feeders, birdhouses, lanterns, planters, ropes, chains, candle holders, path lights, and similar items. HOOK DIMENSIONS - Product size: 2.2 x 1 inches / 5.6 x 2.5 cm. Screw length: 0.8 inches / 2 cm. Screw diameter: 0.15 inches / 0.38 cm. Open mouth: 0.47 inches / 1.2 cm. PACKAGE INCLUDED - Pack of 20 Q-hangers.