This awesome glass features a transparent Potion No. 86 bottle on the front which automatically takes on the colour of whatever beverage you have just poured. The wrap-around snakeskin-effect background adds a magical finishing touch. A fun, thoughtful and practical gift, this Harry Potter Potion Glass is supplied in a full-colour, open-fronted gift box making it the perfect present for any Potterhead, whatever the occasion. Plus any collector of official Harry Potter memorabilia would welcome this fabulous addition into their collection. This amazing 400ml (14floz) capacity glass is great for soft drinks, beer, or a tall cocktail but maybe stay away from the syrup of hellebore and powdered moonstone described on the label as this is highly poisonous