Different Size springs are matched to hook size to maximize holding power. Quick-drop shank below eye allows for rigging fat-headed baits, and maximum gap allows for improved hook sets because of better bait clearance. The non-movable weight attached (5130W) not only helps to sink or swim a rigged bait down into the strike zone, but because the weight is positioned so low on the shank, it provides a keel effect. As a result, when rigging large swimbaits weedless-style, plastics swim naturally (as opposed to rolling or flipping where weights are inserted inside soft baits). Ideal for both fresh and saltwater fishing, features include a TwistLOCK® Centering-Pin Spring (CPS - patent pending) attached to the hook eye, maximum gap, a XXX-strong forged shank, Super Needle Point, and black chrome finish.