Berea Hardwoods 53A Bushings are essential components designed to fit on the mandrel between mounted pen blanks, helping you achieve the wood size for your pen projects. These round steel pieces must be turned down to the top of the bushings to ensure the correct fit. Each kit includes specific bushings, with the letter after the bushing number indicating the compatible mandrel type, such as A or B. These bushings are specifically made for the Glacia Ballpoint Pen, providing precision and quality in your pen-making process. Model Number: 53A