TAJ ENTERPRISES Master links and rings are important devices in the lifting and rigging industry, they are a closed-loop device usually made of forged alloy steel and are used to make connection points in rigging applications such as chain, rope, wire rope and synthetic slings; which could be used for single leg or multiple legs What is a master link in lifting? Master links are a crucial lifting chain component and are used to connect slings to chain loads, available as a single master link for one or two-leg lifting slings or as a master link assembly with sub links for three-leg or four-leg lifting slings.