Well, I've often seen a cat without a grin,' thought Alice, 'but a grin without a cat is the most curious thing! We don’t know what Lewis Carroll was drinking when he wrote Alice's Adventures in Wonderland, but we’re pretty sure it wasn’t tea or coffee. From the Caterpillar with the hookah to the Mad Hatter, his characters were as "out there" as Carroll himself. Holds 12 oz / 350mL of coffee or tea or whatever it is you drink. Disappearing mugs are not dishwasher safe but are microwave safe.