Ark Institute 11oz Magic Mug

Bring the magic of childhood back whenever you enjoy your favorite beverage thanks to this Ark Institute magic mug.
With a capacity of 11oz, these mugs are made with a ceramic material that features a black exterior and a white interior. Thanks to the heat-reactive surface and matte finish, whenever hot liquid enters the cup, the hidden message is revealed.

.: One size: 11oz (0.33 l)
.: Ceramic material with black exterior and white interior
.: Heat-reactive design with a matte finish
.: C-shaped handle
.: Notice! Hand wash recommended