Bamboo really is the perfect sustainable material to make toothbrushes from! Did you know bamboo is actually a grass? And it's one of the fastest growing plants on the planet .We use a species called Mao bamboo. The Boo toothbrushes are soft and smooth, and comfortable in the mouth and are made with a 100% biodegradable  Bamboo handle and Nylon 4 bristles that can be recycled if cut off. Our adults toothbrush come with coloured medium bristles, and are available in 5 funky colours; so there will be no mixing them up with the rest of the family!