Floss made from natural silk and encased in a cool, plant-based plastic shell. We've eliminated the need for a plastic case as the packaging itself becomes your floss container; pop it open, thread it, close it, use it. The silk is a derivative of silkworms, however, the methods used to obtain the silk are completely cruelty-free. Plant-based packaging materials that are recyclable. 37m of biodegradable silk floss. Supplied as a pack of two.