The Eco-Living Bamboo Adult Toothbrush, the perfect "first" step towards a low waste life! Each handle is Organic Moso Bamboo, which is naturally antibacterial and non toxic. Longevity: Because of the dentist recommended Nylon-4 bristles, each toothbrush is recommended to be replaced every 3-4 months. Remove the bristles with tweezers or pliers and check with your local recycling center for proper disposal. The bamboo handle is completely compostable. Environmental Impact: Each plastic toothbrush that has ever been produced is still around on our planet and will be for hundreds of years. Eventually, microplastics will be left forever.