Feature●The Mono Zero round eraser from Tombow helps protect your work and erase only what you need. This high-quality eraser does not damage the paper. Its pen-style body has one size and tip shape for easy correcting.●2.3 mm eraser diameter . 12 packs. Ultra-fine precision tip. Refillable. 1 eraser. 2 refills.Description The Mono Zero round eraser from Tombow helps protect your work and erase only what you need. This high-quality eraser does not damage the paper. Its pen-style body has one size and tip shape for easy correcting.Â