Bundle - Harry Potter Gryffindor, Slytherin, Ravenclaw, Hufflepuff Beanie Hat Set Set of 4 Harry Potter house beanie hats. Includes Gryffindor, Slytherin, Hufflepuff, Ravenclaw beanie. Officially licensed (Warner Bros) Harry Potter products. One size fits most children and adults. 100% soft and cozy knit acrylic.