Faber Castell - Large Kneadable Art Eraser - Colors, for charcoal and graphite
http://www.yamamart.com/shop/faber-castell-large-kneadable-art-eraser-colors-for-charcoal-and-graphite-39451
http://www.yamamart.com/web/image/product.template/39451/image_1920?unique=9ff8695
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