Harry Potter Earrings Platform 9 3/4 Charms on silver plated earring hooks he famous platform at Kings Cross Station in which Hogwarts Students gain access to the Hogwarts Express These charm earrings have been created from the Warner Bros style guide. Each charm is approx 15 mm. These earrings come on the Harry Potter branded card packaging and shows the Warner Bros logo on the reverse. Part of an official Jewellery & Accessory collection