2 Natural Bamboo Toothbrushes, Organic Bristles Anti-Microbial and Eco-Friendly. Green Tones -natural material and fibers from earth help promote balance, her mind and body to keep you grounded. natural toothbrushes to polish surface stains, while being gentle on teeth and gums. These toothbrushes are made with sock bristles, which are gentle on the gum. Made with 100% natural bamboo, which is naturally anti-microbial, and eco-friendly and also bio gradable and better for the environment . The handle is design ergonomically to fit comfortably in your hand.