This is a discontinued cup, likely sold around 2011. It was used a few times as a cup and then stored in a cupboard. Before listing, I confirmed that the design changes properly when hot water is added! Product: Suica's Penguin Mug (Change) Size: Approximately 8cm in diameter x 10cm in height Other: No accessories (no box) [Product Description] When you pour a hot drink, the Suica Penguin, who is initially facing backward, will turn to face forward. *Price is not negotiable, instant purchase OK *Will be carefully packed with cushioning material and shipped anonymously. *Discount available when purchased with other items, please comment!