• Wizard toy book - Create a brick-built Chomping Monster Book of Monsters with this fun LEGO Harry Potter fantasy set for kids aged 9 and up • Pull-back action - The book has hidden wheels and a pull-back function, so simply place it on a flat surface, pull back, let go and watch it speed away with its mouth chomping as it goes • Authentic details - This set offers a fun building challenge for kids to recreate the furry details on the book cover in LEGO style, plus its eyes, teeth and fangs • Harry Potter character - Display the buildable book with the Neville Longbottom LEGO minifigure holding The Monster Book of Monsters accessory element • Wizard gift for Harry Potter fans - This kids' building toy makes a fantastic birthday present or holiday gift for girls, boys and any wizards, witches or Muggles aged 9 and up • A helping hand - The LEGO Builder app guides your youngster on an intuitive building adventure with tools that let them zoom in and rotate models in 3D, track their progress and save sets • Part of an extensive range - LEGO Harry Potter collectible sets (sold separately) let young witches, wizards and Muggles play out iconic scenes, make up new stories or simply display the models • Build, display and play -The buildable monster book in this 518-piece LEGO set measures over 6.5 in. (16 cm) long, 5.5 in. (15 cm) wide and 2.5 in. (6 cm) deep