Nspire Bamboo Toothbrush-Pack of TwoNational Geographic notes that more than 448 million tone of plastic are produced every year find their way into the oceans, destroying marine life and the planet decades after it is discarded. Bamboo toothbrushes are a sustainable alternative to plastic brushes. A biodegradable toothbrush made from organically grown bamboo. the bristle are made of biodegradable nylon 4 and caster seed oil and infuse charcoal or bamboo fibre. Biodegradable bamboo