This is the latest innovation from Breakaway designed for long distance casting. The Imp is a fast-link clip with an impact trigger. Your baited hook is clipped into the plastic holder, thus securing it directly behind the sinker. As soon as the rig hits the water, the hook and bait are immediately released. Where this contraption really comes into its own is with multiple bait rigs so that one can clip your second or third bait and when casting the whole rig, far greater than normal distances are achieved because these baits are all travelling behind each other.
