Dimensions: 43mm x 17mm x 11mm (small); 55mm x 23mm x 11mm (large)
Tombow Mono Tough is an enhanced version of the Mono Eraser. The plastic easer was manufactured using the break resistance process, to make the eraser more durable. The eraser ranked the first in the Japanese stationery award among erasers due to its best performance in the graphite removal. There are scientific design in the sleeve to make holding more comfortable for users.