Pentel Super Multi Eraser: Remove brush marks and printed letters from an oil-based ballpoint pen and erase the paper surface. Sand removal type with little damage to paper. Tombow Pencil Mono Eraser for Ink; Eraser for erasing letters written on a ballpoint pen or printed text. Non-PVC eraser made of natural rubber and stone powder, removes writing by putting ink into paper. Precautions for Use: Place in the sleeve after use. 【! Note: Please keep out of reach of children. Do not use for anything other than erasing marks.