A set of brass scales were owned by a Gryffindor student while at Hogwarts School of Witchcraft and Wizardry. They left them behind after a Charms class with Professor Flitwick, and put up a notice on the Gryffindor pasteboard. Harry Potter, Ronald Weasley and Hermione Granger later found them and returned them, earning ten house points.
- Harry Potter and the Philosopher's Stone (First mentioned)
- Harry Potter and the Prisoner of Azkaban (video game) (First appearance)