Watch as eons pass right before your eyes when you add a hot beverage to this super cool mug! As you fill the mug up, see the three prehistoric beasts turn into bony fossils like magic. Small enough for a decent sized cup of tea, large enough for a cup of soup, this versatile mug can be used for so much! Mug is microwave safe. Do not machine wash or use an abrasive scouring agent to clean, do not soak for long periods of time. Wash before first use!