Harry Potter Slider Charm Slytherin Crest Charm on a silver plated charm bail The crest of the famous Hogwarts house, founded by Salazar Slytherin This charm has been created using a print from the style guide from Warner Bros. It is approx 15 mm x 20 mm. This charm comes on the Harry Potter branded card packaging and shows the Warner Bros logo on the reverse. This charm is compatible with our other Harry Potter slider charms, necklaces and bracelets.