These triple leg chain slings are built using Pewag's specialized BW plate hooks, which are designed specifically for the lifting of steel plate, but can also be used on stacks of metal or timber. Based on Pewag's recommendations, we only offer them on three and four leg slings to ensure proper load stability. Also be sure to keep an eye on lifting angles so that your hooks maintain a proper bite. Plate hooks are attached at bottom of sling using a coupling link that securely connects to the closed eye, making a very sure connection. Made from Grade 100 alloy steel, safety factor of 4:1.