Made of stonewear and thermographic ink. N is for ninja lurking in the darkness of this morph mug. Skilled in the arts of suddenly disappearing, sneaking up on cats and general stealthy behavior, this ninja is not to be toyed with. Of course, if you wish to catch him, all you need to do is fill the mug with a hot beverage and poof he'll appear. Mug measures approximately 3-1/4 by 5 by 3-3/4-inch. Hand wash only. Do not microwave.