This knot is widely used by match, pleasure and specialist anglers wordwide, for linking hooks and swivels to either mainline, hooklength or even braid.
It is a very strong and relaible knot that should be dampened thoroughly before it is pulled tight.
As this knot features a small amount of whipping above the swivel or hook eye it does not 'strangle' the item being tied, therefore it retains a huge amount of strength.
Pass your chosen hooklength through the eye of your hook or swivel twice. Pull 4ins of the hooklength through. Now form a loop with the tag end of the hooklength.
Thread the tag end over the hooklength and through the loop four times, making sure it exits through the loop.
Moisten the knot thoroughly with saliva and gradually pull it to lock the knot against your hook eye or swivel eye. Trim any waste from the hooklength tag end as close as you can to the knot.