Tombow MONO Eraser M 19 g The truly classic eraser from Japan - launched in 1969 in the Japanese market. MONO eraser is available in the three sizes XS, M and L. 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. Material: PVC, phthlate free and latex free. Weight: 19 g.