風林火山マグカップ(Fūrinkazan)：Morphing Mug

At first glance, it looks like a sleek black mug—but pour in something hot, and the magic begins. As the mug heats up, it transforms before your eyes, revealing your custom design, funny photo, or meaningful message against a bright white background. Made with a special heat-sensitive coating, this color-morphing mug is always a crowd-pleaser, perfect for surprising friends, gifting, or making your morning coffee a little more fun.

• Available in 11-ounce or 15-ounce
• Dimensions:
  • 11-ounce: 3.2” D x 3.8” H
  • 15-ounce: 3.4” D x 4.5” H
• Strong, ceramic construction
• Hand wash; microwave and dishwasher are not recommended due to the special, heat-sensitive coating that gives this mug its magic
• Meets FDA requirements for food and beverage safety
• Printed on demand in Reno, NV
• Do not overfill and be careful with hot liquids that may scald
• Keep out of reach of children when filled with hot liquid