The coffee mug devil will fit, as illustrated, on a ‘standard’* coffee mug, the ones that accumulate in most homes and/or apartments. These mugs are approximately 72.5 mm inside diameter, so on the bottom of the model there is a ring 72.5 mm outside diameter and 5 mm high, to keep the figure in place. (These dimensions allow for the variation in 'standard' mugs.) Available in the Shapeways range of colours, including black and white, like coffee. Personally, I find the black attractive, and white – or any other colour – can be painted if that’s your style. This is the same figure as used for the Scotch Devil (which see) -- and is offered because most people drink considerably more coffee than scotch. *(See blog.ampli.fi/the-standard-coffee-mug-dimensions)