Let the cat's "mug" on this mug give a dire warning! Fluff Around and Find Out. Nobody will talk to you until you've had your coffee (sweetened by cat hair of course!)  Interior is glossy jet black. Handmade from stoneware clay, this mug measures 4 x 4 and holds 16 oz. Created with all lead free, non toxic materials- safe to place in the dishwasher and microwave. Made to be used and enjoyed. Great gift for a Crazy Cat Lady, Cat Mom. Cat Dad or pet lover.