Lenny Mud. Bring awareness to marine conservation (or just celebrate your beach house) with this RESPECT THE LOCALS shark mug. Handmade from stoneware clay and lead free glazes, kiln fired. Interior is blue. Measures 4 x 4 and holds 16 oz. of your favorite beverage- safe to place in the dishwasher and microwave. Made to be used and enjoyed. Great gift for a shark lover or hostess gift for a vacation.