Each mug holds about 12 fl. oz. and measures 5" x 3.5" x 3.75" I used raspberry, mango, white and speckled clay to create the unique patterns on this mug. It isn't the glaze that creates the pattern, but the mixing together of the different clay bodies while the piece is being created on the wheel. Each piece is one of a kind, patterns will vary. The mugs are food, dishwasher and microwave safe.