✨ Sip, Reveal, and Belong to Gryffindor! 🦁 Encourages literacy and spatial awareness. Complete your Hogwarts collection with all four houses. A must-have for every Harry Potter enthusiast. Authentic products from the Wizarding World. Watch your mug come to life with heat! Ceramic Mug Hogwarts House Thermal Reveal The WOW! STUFF Harry Potter Sorting Hat Mug is a magical ceramic mug that transforms from a plain black design to reveal the Gryffindor colors and emblem when filled with a hot beverage. This officially licensed product is perfect for fans aged 14 and up, making it an ideal gift for any aspiring wizard or witch. Collect all four Hogwarts house mugs to complete your magical set!