Review on 🗺️ Harry Potter Marauders Map - I Solemnly Swear - 16 oz Large Ceramic Morphing Mugs – Heat Sensitive Clue Mug - Full Image Revealed with HOT Liquid by Eric Render

No evidence of a "latent" image at room temperature, which many similar mugs do not have. 16 oz is the perfect size for those of us who need a big coffee to start the day. The artwork is beautiful and detailed when unfolded and will last until it has cooled most of the way. My only complaint (which doesn't apply to this mug) is that the transforming mugs are not microwaveable. Not that big of a deal, but for some it can be a deal breaker.