The Meritage Reactive Lava 6 Piece 16 Ounce Stoneware Mug Set in Assorted Colors is perfect for the earthy and natural home kitchen. The drinkware set features a special reactive glaze finish that smears color over the earthy tones. Boasting a likeness to gem veins hidden within stone. These cups are dishwasher safe for convenient cleaning, and microwave safe for quick heating. The durable stoneware make is guaranteed to provide long lasting quality. Enjoy long time favorites like fresh coffee, hot chocolate, and milk tea!