GREAT Harry Potter Hogwarts merchandise. Harry Potter and the Hogwarts School of Witchcraft and Wizardry are celebrated in the books by JK Rowling and the movies that they inspired. Hogwarts is a school for young witches and wizard who need to learn the skills of magic. Each student is assigned to a house when they arrive. A sorting hat is used to determine where each student fits. Gryffindor, Ravenclaw, Hufflepuff, and Slytherin are the four school houses. If you are looking for GREAT Harry Potter Merchandise, you’ve come to the right place. Bioworld specializes in creating GREAT apparel and accessories, along with other cool geek merchandise. This lanyard features a reversible design with the four house crests on one side and Hogwarts School of Witchcraft and Wizardry lettering on the other. This is NOT a breakaway lanyard. It includes a Hogwarts School crest rubber charm and a collectible sticker. Makes the perfect gift for a Harry Potter fan.