Handcrafted pottery coffee mug, ceramic teacup, stoneware. Glazed inside with a glossy, easy to clean black glaze and outside with glossy, navy blue glaze with a band of lighter blue green and a scattering of silvery microcrystals. More Blue Parrot cups and mugs: http://www.etsy.com/shop/BlueParrotPots?section_id=6797001 Approx. 3.5x 3. (opening) Will hold approx. 12 ounces of your favorite beverage. Food, dishwasher, and microwave safe, as is all of my work.