Replace your worn down FN Pen 2.0 erasers. Includes: 1 machined cap + eraser   Note: The FN Pen 2.0 eraser has the same dimensions as a standard #2 pencil eraser. This means instead of purchasing the entire machined cap + eraser assembly here, you can simply replace the rubber part at home. Read our eraser replacement instructions here. Product Update: November 2024 - The FN Pen 2.0 replacement erasers now consists of a harder rubber blend. This will significantly improve erasing usage and longevity.