"MONO eraser" has enjoyed popularity for its high erasability since it first launch into the Japanese market in 1969.
The blue, black, and white stripes on the sleeve and the "MONO" logo have created the standard image of an eraser. The soft consistency of the plastic eraser enables an especially pleasant erasing and excellent erasing results. A paper sleeve protects the eraser from dirt. Due to left-out edges the sleeve does not cut into the eraser when used under pressure.