GB Eye Joker mug The Joker is a psychopath with a pale appearance based on the main character of the film The Man Who Laughs. The mug is not dishwasher and microwave proof but the handle of the mug is a practical carabiner, so you can easily attach it to your backpack, for example. Specifications: Colour: silver, black Gender: unisex Material: steel Contents: 250 ml Diameter: 9 cm Height: 11 cm