Made from wheatstraw, a leftover agricultural fiber, these square bowls are great for hot or cold foods. Microwave and freezer safe, as well as moisture resistant with no plastic or wax lining. Commercially compostable. 32-oz - 8.5 x 8.5 x 1.88" Clear one-size fits all PLA lid is available (p/n 453-23250). Use of the lid is not reccommended for hot liquid take-out foods.