Staedtler Mars Plastic Premium Quality Eraser. Removes graphite from paper, tracing and drafting film.. This premium eraser is ideal for professional use, being suitable for use with graphite on paper and matt drafting film, as well as erasing OHP pen from overhead transparencies. The eraser comes packaged in a practical cellophane wrapping with a tear strip for easy removal and a slide sleeve for protection. This bulk pack contains 20 white erasers measuring W65 x D23 x H13mm.