HIGH QUALITY MATERIAL - Made of high quality steel with rust proof coating.Hangs up to 40 lbs.SAFETY BUCKLE DESIGN - Windproof squirrel-proof,hanging items will not fall out. Easy Release,the clips for Christmas Lights,leave in year after year.EASY TO INSTALL - Screw in hooks, easy to install on wood, great for patio, deck, ceiling, tree, fence and more.WIDE APPLICATION - For hanging Christmas lights, wind chimes, feeders, birdhouses, lanterns, planters, ropes, chains, candle holders, path lights, and more.Hooks DimensionProduct size: 2.2 x 1 inches/ 5.6 x 2.5 cmScrew length: 0.8 inches/ 2 cmScrew diameter: 0.15 inches/ 0.38 cmOpen mouth: 0.47 inches/ 1.2 cmPACKAGE INCLUDED - Pack of 20 Q-hangers."