This is a mug shaped like a nautilus. The Limited Edition was available in a variety of glaze colors including Natural (Ivory/Brown), Yellow/Orange, Orange/Red, Red/Black, Blue/Purple and Blue/Red. Measures: 4.5"H 4"W X 7"L. This black glazed version is from the Black Friday event. Most of these Black Friday mugs were limited to ten pieces only although their numbering is often included within the earlier edition set.