This STAR WARS heat change mug is totally awesome! Sure to delight any hot beverage loving STAR WARS fan, when the mug is cold you can see the handles of various Lightsabers, and when hot liquid is poured into the mug the Sabers appear to come to life with their diatium powered plasma blades appearing before your very eyes. When the mugs cool down, the LightSabers power down too...brilliant! Watch the video to see the mugs in action. Standard 300ml mug sizePorcelainUnsuitable for dishwasher or microwave use.LightSabers featured are: Luke Skywalker, Mace Windu, Asajj Ventress, Yoda, Obi-Wan Kenobi, Count Dooku, Luke Skywalker/Anakin, Darth Maul, Kit Fisto, Qui-Gon Jinn.