Traction engine magic mug as we drink we think of the traction engine rally's of days gone by.

Get that sense of wonder back with the magic mug. Thanks to the magic of science, this mug alters its color when it heats up and gradually reveals the picture underneath. Each mug comes with a C-shaped handle, accommodates 11oz of your favorite beverage, and is made with ceramic material that is black on the outside and white on the inside.

.: One size: 11oz (0.33 l)
.: C-shaped handle
.: Heat-reactive design
.: Ceramic material with black exterior and white interior