LEGO Harry Potter Hogwarts Castle Potions Class - 397 Pieces | Let your young witch, wizard, or Muggle join the Potions Class at Hogwarts Castle with this collectible LEGO Harry Potter toy (76431) for kids aged 8 and up. The buildable classroom opens up for easy play and includes authentic details like a blackboard with potion-making instructions, potion ingredient bottles, and various equipment to inspire creativity.