Micro Size That Exceeds Limits! With a fine weight range of 0.1 grams and up, it can accommodate worms about 1 inch like microbait patterns. Through nail pins make it easy for anyone to stir straight. In addition, it is easy to stick in the target position, so it is able to respond to rigs that you want to focus on the position of the sinker such as the hobust. How to Use: 1. We provide the exclusive through nail pins included with the through nail. 2. Pass the through nail pin through the hollow center of the nail 3. Insert the nail sinker into the desired position and pull the through nail pin only and remove it.