Bamboo fiber large bread bin, plus lid is bamboo-wood bread cutting board! White bin bamboo fiber tablewares are made of 80% bamboo fiber, blended with a 20% food-safe (worldwide) bonding material. Bamboo is the world’s fastest-growing wood, so it replenishes itself about as fast as we all use it! The result is a well-priced, molded series that’s colorfast, durable, dishwasher safe, has unique textures and appearance, and is a true cutting-edge product.