Ceramic. 11 oz mug dimensions: 3. 8″ (9. 6 cm) in height, 3. 2″ (8. 2 cm) in diameter. 15 oz mug dimensions: 4. 7″ (11. 9 cm) in height, 3. 3″ (8. 5 cm) in diameter. 20 oz mug dimensions: 4. 3″ (10. 9 cm) in height, 3. 7″ (9. 3 cm) in diameter. Lead and BPA-free material. Dishwasher and microwave safe.
