This awesome heat changing mug measures 3.75″ tall and has a 3″ diameter! Not only is it already super stylish because it features the classic Delorean car from Back to the Future, but when you add boiling water to your mug – See your Delorean disappear… and re-appear on the other side! Amaze your friends with this magical Mug or treat one of your loved ones to this super cool gift! Dishwasher and microwave safe.