Sprout plantable pencils are the ultimate in sustainable stationary. Made from FSC certified wood, guaranteeing harvested timber is from responsibly managed forests. The graphite and clay material you write with is non-toxic and lead free. The water soluable green cap contains non-GMO seeds that you plant when you have finished with the pencil. Plant it, water it and watch it grow! International patented application number PCT/US2013/055309.