The S hooks made of high quality Marine Grade 316 Stainless Steel, maximum corrosion resistance and durability The metal s hook weight limit is 40-pounds. The stainless S hooks opening can be made bigger or smaller or closed with pliers Variety of outdoor and indoor uses including sporting, organization, gardening, hanging plants, crafting, industrial, home, and business Total Length: 1.4 inches, Diameter: 5/32 inches, Weight Limit: 40 Pounds,easily looped into rope and/or chain JY-Marine high quality marine-grade 316 stainless steel S-hooks for use in home, business, industrial, sporting, gardening, water sports, garage organization, general organization, crafting, marine, boating, children's play yards....S hooks can be used in lifting. The S-hook can be looped into rope or chain and can be used for securely hanging items with a 40-pound weight limit.The S-shape makes attaching and removing of the hook easy. The shape also adds to its strength to evenly distribute weight onto separate hooks. S-Hooks can be open or closed with pliers to insert or remove connection. They are sturdy and very easy to install.