This 11 oz thermo-reactive mug with a "cheeky" design is a must-have for your collection! And if you are an anime lover (or looking for a great gift for your favorite anime lover), have fun seeing if you can figure out who these "cheeky" characters in the design are! You will not find this mug anywhere else so get yours before they are all gone and be sure to discover our range of heat activated, color changing mugs!! These particular mugs need to be handwashed and we do not recommend using them in a microwave, this is to ensure your mug lasts a lifetime!