This mug is a delight to drink out of. It keeps your coffee or tea warm while providing protection from heat. It can also be stacked for space saving storage. Stackable mug features a handle for easy transportation and a durable SAN construction that resists temperatures of up to 212 degrees. 10 Oz Stackable Mug (4305203) measures 4.5" in diameter and can hold up to 10 oz. of coffee or tea. This coffee mug features a sleek and simple design, making it perfect for use in restaurants, cafes and coffee shops. It is also dishwasher safe and easy to clean.