Custom Always Be Yourself Unless You Can Be A Unicorn Color Changing Mug Morphing Coffee or Tea Mug Customize your Morphing Mug,Send your picture or message to us Healthy Ceramic, C-Shaped Handle, 3.23"(W) x 3.74"(H), Capacity: 11 OZ Color changing ceramic mug (from black to white), heat-activation reveals hidden image. 11 Oz capacity, sized in 3.23"(W) x 3.74"(H).