NON-SLIP & Premium Quality:Our rafter hanger hook are made of heavy duty steel metal material with vinyl coated,have strong load bearing capacity which,and gives better grab on hanging items and prevent them from falling or being scratched.which is rust-resistant, smooth and non-slip Large heavy duty s hooks. WIDELY APPLICATION:These garage bike hooks are in addition to hanging the bike and can for hanging heavy garagem items,ladders,sports equipment,kitchen utensils and cup.Ideal for outdoor fence hanger for plant holders,pool pole equipment and so on. PRACTICAL DESIGN: These rafter hanger hooks are a simple and friendly solution to save the space, Garage hook has a strong tough grip over rafters without the use of any screws you can hang them on racks,bars,rafters garage,garden,fence . Large Size & Heavy Duty: these solid large s hooks measure 7.7 inch in length ,and the top side opening is 2.1 inch, the bottom side opening is 4.5 inch(tihe size is suitable for most rafters); These heavy duty s hooks a diameter of the metal wire is 8.2mm. Very solid and could bear heavy items. Package includes:4 pack black rafter Hanger Hook,Garage Bike Hooks,with rubber coated,smooth,non-slip,strong and multi-functional., Weight: 0.8598028218 pounds, Manufacturer: DINGEE