A nail-shaped lead that can be used by piercing the worm. Fine adjustments such as stabilizing the swimming balance and changing the fall speed are possible. Ideal for Nekorig using straight worms, shadow tails and swimming baits! Adopt a square design to reduce slipping during casting. ● Plummet that can be incorporated into the worm to increase weight. ● Adopts a square pyramidal shape which is easy to insert and difficult to extract. ● If you cut with wire cutters etc. Along the notched edges, weight can be optimized in approximately 0.2-0.3 g units. ● Use high purity lead with high specific weight. Easy to cut with wire cutters and foldable by hand. It corresponds to various situations.