Watch the avengers come to life each time you brew up the ceramic mug features images of thor iron man hulk and captain america who will appear in their full glory when the mug is filled with a hot drink when cold the mug returns to its black base colour with the word marvel hiding the true images presented in a matching comic style gift box the mug is an ideal gift for any avengers fan features marvel heat changing mug decorated with images of thor iron man hulk and captain am