Harry Potter Glassware Set of 4 10 oz Tumbler House Crests Silver Buffalo Hogwarts Gryffindor, Ravenclaw, Hufflepuff, Slytherin Drinking Glasses 4pc. 10oz. Tumbler Glass Set Top-rack dishwasher safe, but not microwave safe. These tumblers are great for everyday use or as a collector piece Review the description and pictures before purchasing as the pictures are considered part of the description. There may be minimal flaws that I missed at the time of listing and the color/shade may vary slightly on different monitors Season-Spring, summer, fall, winter Quidditch practice, hogwarts, potterhead, dumbledore, dracomalfoy, ron weasley, hermione granger