Experience the magic of the wonderful Wizarding World of Harry Potter thanks to the Silver Buffalo Warner Bros. Harry Potter Hogwarts Houses 4-Piece Glass Coaster Set. This set of 4 glass coaster set features the coat of arms for each of the Hogwarts School of Witchcraft and Wizardry house, with a coaster for Slytherin, Ravenclaw, Hufflepuff, and Gryffindor. Each coaster has four plastic scratch-resistant feet and set comes with a plastic storage tray. Our coaster set is durable enough for everyday use but unique enough to stand-out as a collectors piece. And feel confident knowing you are purchasing authentic, officially licensed Harry Potter products from Silver Buffalo.