Package Include: 100 Pcs 1/2" Vinyl Coated Screw-In Ceiling Hooks, The Screw length is 0.31" / 8mm, Hook length is 1/2" / 13mm.Please allow 1-2mm error due to manual measurement, please make sure you do not mind before you bid. | Ceiling Cups Hooks is perfect for securely hanging light weight items such as necklace, bracelets, photos, curtains, ropes, chains, mugs, feeders, planters, kitchen towels, and more. | These cup hook could help to create extra room for home, school, office. Make your home clean and tidy. | With tapping screw, easy twist the screw hooks into wood,plywood or drywall and the steel points bite into swiftly without stripping and provide maximum strength and durability. | NO RISK PURCHASE- Just try our products and we believe that you will love them as we do,if you don’t absolutely love them let us know and we will we offer a 100% money back guarantee. NO QUESTIONS ASKED!