The Simpsons Treehouse of Horror 31 Day Advent Calendar for 2025 Halloween is a collectible action figure set from JAKKS Pacific. Featuring characters from the popular TV show The Simpsons, this original licensed reproduction is themed around Halloween and made of plastic material. Perfect for fans of The Simpsons franchise, this calendar includes a series of action figures to countdown to the spooky season in style. New/sealed/unopened.