Multi-purpose sinkers (MP sinkers) are compatible with a variety of rigs. In addition to being able to use it as a free rig, punch shot, down shot, etc., when combined with a twist lock, it can also be used as a Neko rig... it can be used in a variety of ways depending on the user's ideas. When using with a Neko Rig, you can adjust the stack feeling by changing the amount the twist lock is screwed into the worm. Semi-fixed: Emphasis on feeling stuck → Fully fixed: Emphasis on slipping through The unique shape of this sinker has a low center of gravity and six edges designed to emphasize sensitivity and a feeling of stacking.