We primarily use alloy coupling links when we manufacture chain slings, but they are very handy for use with wire rope slings and synthetic web slings too. Their two-piece design makes them easy to assemble (you just need a hammer) and also to disassemble (you need a hammer and punch). Once properly installed, they offer a semi-permanent connection. Plus, a generous inside width accommodates many different fittings. Proof-tested and certified with a 4:1 safety factor.