Berea Hardwoods 55A Bushings are essential components designed to fit on the mandrel between mounted pen blanks, allowing you to turn the wood down to the precise size needed for your project. These round steel pieces ensure accuracy and consistency when crafting pens. Each kit includes specific bushings, with the letter following the bushing number indicating the compatible mandrel type, such as A or B. These bushings are particularly suited for the Glacia Ballpoint Pen, making them a reliable choice for pen makers seeking quality and precision. Model Number: 55A