sounds like a d-rig combi link,the ring is attached so it slides on a loop easily,so when the bait is ejected it is this which moves first sliding along the loop,leaving the hook to follow last.This is designed to make the hook find a hold more easily,the 2" braid is to help give the end a more natural appearance,being supple it has an easier more natural range of movement at the end,the stiffer monofilament part was designed to give the hook better anti eject qualities.this rig was used where braided hooklinks were the norm,whilst being very supple,the carp could eject them with just as much ease. hope this is of some help