If you enjoy drinking a "hearty" cup of coffee without it getting cold or going back for refills, then this mug was made for you. Its the perfect size for a nice hot serving of your favorite java, satisfying and eye-opening all at the same time. Not too large, not too small, but just right. In fact, its perfect! Constructed of stoneware. Microwave and dishwasher safe. Perfect coffee mug holds 10 ounces.