It can be much easier to position your load / pick correctly if you have a hook that swivels before the load is applied (this hook is also available in a similar version that swivels under load, check out the Gunnebo LKBK Swivel Bearing Self-Closing Grip Latch Hooks). They feature a popular self-closing design that means the hook latch (made from heavy-duty alloy steel) closes instantly once a load is applied to the hook. The latch cannot open while the hook is under load, yet releases easily once the load is released. This hook is very similar to the LBK version, except it does not feature the "Grip Latch" and it's available in a couple additional sizes (the small 7/32" and the large 3/4"). Each hook is proof-tested and certified with a 4:1 safety factor.