Humble Brush Adult Mixed Colors

- This product has Medium bristles that have been verified to be free from the toxin BPA (bisphenol A). - The bristles are made out of nylon, a durable material that degrades over time and can be processed through regular waste channels. - Humble Brush is the full package when it comes to awareness of the environment. - The box is made out of 100% recycled materials. Humble Brush has no disadvantages to conventional toothbrushes.