The Hogwarts School of Witchcraft and Wizardry is the place where young wizards and witches go to learn the mysteries of magic. The students are divided into four different houses. The houses are Slytherin, Gryffindor, Ravenclaw and Hufflepuff. If you're looking for officially licensed Harry Potter merchandise, you've come to the right place! Bioworld specializes in creating officially licensed apparel and accessories, along with other cool geek merchandise. This officially licensed kids tee features a distressed Ravenclaw House Crest front print graphic. Made of 50% Cotton, 50% Polyester.