One-of-a-kind art comes in this boxed gift set! A symphony of contrast! A shining dark brown glaze coats the interior of these mugs, while on the exterior, white slip lines bounce across the surface of dark unglazed clay. My son says they are his all-time favorites; he loves the contrast! Totally functional and exquisitely beautiful, these won’t slip or slide in your hand, but they will delight your eye.