Super Giant TOMBO MONO Eraser - Not for Sale MONO Eraser The outer paper case for the MONO eraser is missing, so only the eraser is available. You could cut it up and use it as an eraser, or for making eraser stamps. Size: Length: Approximately 16cm Width: Approximately 7.5cm Thickness: Approximately 2.5cm Please understand that there may be some error due to amateur measurements. Please refrain from purchasing if you are nervous about home storage items.