The Shimano Undulator boasts a tight, vibratory swimming action that proves highly effective at all retrieve speeds, but truly shines when worked slowly. Its unique design allows it to be bumped into the bottom, particularly in rocky areas, and then paused to rise slowly upwards, creating an undulating motion that drives fish wild. The standout feature of the Shimano Undulator is its lipless design and top connection, which significantly reduces the risk of hooks catching on timber snags or rocks. Furthermore, the incorporation of Flash Boost and Scale Boost technology takes the Undulator's visual attraction to new heights. This enhanced visibility and pulsing flash greatly improve strike rates, making the Shimano Undulator a must-have for any angler's tackle box.