This funny cat mug makes a great gift for any cat lover. It reads: Catfeine on the front and "Without it I'm Catatonic" on the back. Interior is yellow. Handmade from stoneware clay, this large 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. A fresh new update on one our most popular designs.