Breakaway Pivot Beads
Pivot beads were the start of the cascade type rigs. Some clips have a bait clip on them so they can be relayed, but all clips have a line store to take up slack line so the snood can fit snugly into the clip below. The line store can also allow for a hook change. Although these have been superceded by the cascade swivel they are useful for night time fishing and for larger baits as they are not as fiddly as the cascade swivel.