Officially licensed Fantastic Beasts and Where to Find Them merchandise Design features a Niffler and the phrase, Have you seen the Niffler Add hot liquid to transform the design 400ml - 12. 5 (w) x 10 (h) x 9. 5 (d) cm Not dishwasher or microwave safe This Fantastic Beasts and Where to Find Them mug transforms when hot liquid is poured in. Cold, the mug features the phrase Have you see the Niffler and the silhouette of a Niffler. When hot liquid is poured in, the mug transforms to receal a sketch-style artwork design of the Niffler on a parchment-look background. Product Code: MUGBFB02