This is the popular MONO one eraser from Tombow Pencil. It's a holder-type eraser that's easy to erase even small details, making it convenient for studying and work. ・Brand new, unopened ・Available in multiple colors (please check the photos) ・Stored at home, so there may be some minor scratches on the outer packaging ・Individual sales / bulk sales are negotiable Recommended for stationery lovers and students.