These mugs are made of ceramic, measure 3.5" X 5" X 4", and hold approximately 15oz. of your favorite beverage. They feature a beautiful image of your Cat/cat/critter or bird by renowned artist Tamara Burnett. Please note that mugs must be ordered in total increments of 12. Mix and match Mugs as desired, however please make sure the total equals 12, 24, 36, 48, 60, 72, etc. Thank you.