LEGO [Ben 10: Alien Force] - Humungousaur Building Set - Series (8517)Get ready for hero time with the LEGO Ben 10 Alien Force Humungousaur 8517 set. Watch as Ben transforms into Humungousaur, a dinosaur like alien hero with immense size and incredible strength. This LEGO set is packed with exciting features and endless play possibilities, making it a must have for young Ben 10 fans and LEGO enthusiasts alike. Features: Transformation Power: Ben transforms into Humungousaur, an alien hero with the ability to grow to