STAEDTLER is renowned worldwide for the superior quality of their white vinyl eraser, the Mars plastic! The perfect choice for all pencil users, the Mars plastic removes graphite marks cleanly and completely from paper, vellum, drafting film and more. Each eraser is individually packaged in a protective cellophane wrapper with practical tear-and-open strip to ensure the eraser stays clean and fresh until you are ready to put it to work. Made in Germany quality ensures quality erasing performance with no discoloraion of eraser on paper or other surfaces! The Mars plastic eraser is phthalate and latex free, holding true to STAEDTLER's "efficient for ecology" environmental philosophy.