Hogwarts is the famous School of Witchcraft and Wizardry The motto of the Hogwarts crest is ‘Draco Dormiens Nunquam Titillandus’ which means ‘ Never tickle a sleeping Dragon’. This necklace charm is approx 20mm x 25mm and the chain is 40cm with a 5cm extender The Necklace is a silver plated link chain and comes on official Harry Potter branded card packaging.