Morphing MugsHarry Potter – Ravenclaw - Hogwarts House Crest - One 11 oz Color Changing Heat Sensitive Ceramic Mug – Image Revealed When HOT Liquid Is Added!

Works as expected. Changes quickly from black to the ravenclaw colors. Great gift for the Harry Potter nerd or even someone who loves it but isnt hardcore about it lol.

While a cup is not something you immediately are happy to receive as a gift, it made for a great part of dozen of smaller gifts, and the fact that it changed color when heated puts that little bit of wizarding world magic in our muggle lives!

Ordered for granddaughter who is a fan of Harry Potter

This was a gift for my fiance and he loved it. I do think the price was a little steep but the quality and size of the glass is worth it. The color changed evenly and is an overall great product!! Will defiantly be getting me a Slytherin one next!!!

Really unique how it turns colors with hot liquid is added