Each handle is Organic Moso Bamboo, which is naturally antibacterial and non toxic.
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.
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.