These mugs are thrown on the wheel and then a line of ants is stamped around the body of the mug. Each line will be different but they will always crawl in a squiggle pattern. The top, inside, and handle are then glazed a glossy speckled green. The ants are glazed a matte black. Size guide: While some variation can be expected with handmade items, the sizes generally are: 8oz mug is 3 inches tall, 3 inch diameter. 12oz mug is 3.5 inches tall, 3 inch diameter. 16oz mug is 4.5 inches tall 3.5 inch diameter. Dishwasher and microwave safe. Made from stoneware clay.