Micro size, beyond the limit.

With a fine weight range of 0.1g and up, it can be used with worms around 1 inch in size, such as those used in microbait patterns.

The through-nail pin makes it easy for anyone to stick it straight.

Also, since it is easy to stick it in the targeted position, it can be used with high accuracy for hobstoning and other rigs where the position of the sinker is important.