The Tombow MONO ZERO eraser offers reliable and detailed precision for artists seeking pinpoint erasing. Crafted with the legendary Tombow MONO eraser material known for its exceptional erasing quality, this eraser is housed in a pen style casing, ensuring a comfortable grip and controlled erasing with a small surface area. Perfect for erasing small details or removing thin streaks, such as drawing whiskers, the MONO ZERO eraser features a convenient click mechanism on the cap, akin to a retractable ballpoint pen. With a diameter of 2.3mm, the round eraser is ideal for intricate work. Additionally, the erasers are easily refillable, adding to their convenience.