A part designed based on the idea of “bone joints” that allows you to freely tune the worm’s joints. Even stick bait can be transformed into a different type. By carefully designing each size, we have achieved a balance between thickness and strength that does not interfere with the action. The S size (QTY.6) is suitable for small worms and multi-connected joints, and the L size (QTY.6) is suitable for medium to large worms (up to 7 inches).