Perputua made a better pencil by approaching the design from a recycling point of view! Taking industrial graphite waste from electrode manufacturing, and processing it with a patented technique to reconstitute it into a harder solid material called Zantech. Perpetua’s pencils are 80% recycled, do not contain wood, do not break easily and have nice big erasers which are fused without an adhesive. It’s a cleaner pencil that does not leave graphite dust even in the pencil shavings. 100% recyclable, including the packaging.