Handles are made of 100% Certified Organic Moso Bamboo. Moso Bamboo is a one of the fastest growing plants on Earth. Bristles are made with Castor Bean Oil, not nylon like most toothbrushes. Although still not a *perfect* solution, castor bean oil bristles won't leave behind microplastics.
If you change your toothbrush as recommended by the ADA -- every three months -- then it really makes a difference that your toothbrush is plant-based vs plastic.
Dimensions: 7.5" long x 0.625" w