Gentle and sustainable for you and nature! Only 100% vegan materials were used for this toothbrush. How To Do Your Part To Reduce Plastic?. - CHOOSE BAMBOO TOOTHBRUSH. 【Biodegradable design】the handles of these bamboo tooth brushes are made of biodegradable material, which can be degraded easily, and you do not worry about that will cause too much pollution when you throw these toothbrushes away after using.