Make your little one's Brio world even more exciting with the Brio Dynamite Mountain Tunnel! The load wagon will transport the dynamite and you can simply pop it in the slot at the top of the mountain and stand back as the mountain explodes apart to reveal the tunnel inside. This tunnel is sure to provide your little one with hours of fun and imaginative play. Features: Suitable for 3+ years Includes: 1 x Mountain, 3 x Rocks, 1 x Load Wagon, 1 x Block of TNT Dynamite No batteries required Specification: Dimensions: L12. 7 x W20. 8 x H17. 9 cm. Features - Experience an explosive adventure with the 36044 Exploding Tunnel \f1\endash a toy train tunnel for your BRIO World train sets.- With a realistic stone-finish, this sturdy mountain set conceals a hidden railway passage inside. - Insert the TNT into the hole and watch as the Mountain explodes to reveal the secret Tunnel. - Railway play helps children to understand and learn about the world around them in a fun and memorable way, whilst also developing fine motor skills. For children aged 3+.