Bamboo toothbrush. Bamboo brush, medium hard. The pile of the brush is a biodegradable polymer with bamboo fibers. The composition of the bristles is not just Neylon, without the addition of harmful BPA, but an improved biodegradable polymer, the structure of which includes bamboo fibers. By choosing a brush, you have decided to have a positive impact on the environment by using an eco-friendly bamboo toothbrush. Our toothbrushes are made from Mao bamboo, which has been heat treated to make them extra special