This toothbrush case is plastic-free, made of 100% bamboo, and is biodegradable. It offers your toothbrush an ecological home when travelling. The case has ventilation holes, so the toothbrush gets enough air and does not develop mold. The bamboo species used in this product is one of the fastest growing resources on our planet. In the growing area neither artificial irrigation nor pesticides are used, so the product leaves no pollutants in the environment and is completely biodegradable.