Pfaltzgraff Holiday Spice Covered Mug with Diffuser Covered mug measures 8-1/2 by 8-1/4 by 4-3/4 inches; tea diffuser Crafted from durable stoneware with smooth and textured glazes Warm red background with heart motif and eggnog-colored curlicues Safe to use in the dishwasher, microwave, and freezer 5-year warranty against defects; made in the USA