The two boards in this Stripe Cutting Board Set have an attractive stripe inlay design and convenient carry handle. They're only 3/8-inch thick, so they are easy to move and store. Made of bamboo, boards are 16-percent harder than maple, yet easy on your knives. They are naturally anti-microbial and they're eco friendly, bamboo holds the promise of a sustainable, cost effective, and ecologically responsible alternative to the widespread clear cutting of our old growth forests. Totally Bamboo uses organically grown Moso bamboo, so you need not worry about harmful pesticides or fertilizers. Plus, this bamboo is not a food source, or a habitat, for the Giant Panda. Totally good for you and totally good for the environment. Hand wash boards and occasionally use Totally Bamboo's Revitalizing Oil to extend the life and keep them looking beautiful. Medium board measures 11-inch long, 8-1/2-inch wide and large board measures 13-inch long, 9-1/2-inch. Totally Bamboo, totally good for you and totally good for the environment.