Enjoy the joy of painting at home, at work, and in the studio with this amazing heat-changing mug! Simply add a hot liquid of your choosing & observe as your mug begins to reveal a beautiful landscape from the blackness--painting has never been easier! Mug features a bust portrait of Bob Ross on one side, & the famous quote, "We don't make mistakes. We have happy accidents.," on the other. Mug is microwave safe. Do not machine wash or wash with abrasive scouring agents, do not let soak for long periods of time. Wash before first use!