The IMPULSE RIGGIN??? LEECH is the most realistic and effective artificial scented leech in the Northland for fishing with live bait rigs; spinners. It???s designed with a flat wafer-thin ribbed torso, and features a buoyant super-sensitive tail that undulates and swims like a live leech. The 4 1/2?ǥ jumbo leech is super-charged with IMPULSE Instinctual Attractant that features a baked-in MicroPlankton formula Proven 143% More Effective than the leading brand!