Birds on a Wire Heat-Changing Coffee Mug

When it's cold, the mug is encircled with elegant silhouettes of birds on a wire. Pour in a hot beverage and watch as 18 bird species appear in full color. Go ahead and tweet about it! • 10 oz. Ceramic coffee cup with a comfortable handle. • All of our disappearing mugs come in a beautifully designed, colorful box. • Heat activated color changing mugs are microwave safe, but not dishwasher safe. Hand wash only. Don't soak. •