Beast™ Hooks with Twistlock Centering-Pin Spring (CPS) are designed for weedless-style rigging of larger plastics like big swimbaits, flukes, tubes and creature baits. With its Twistlock Centering-Pin Spring (CPS - patent pending) attached to the hook eye, baits can be permanently secured by inserting the pin in the center of the nose of a soft plastic, which can then be screwed onto the Twistlock coil spring to rig perfect every time!