Build Twin Serpent, a Monster Truck, using K'NEX bricks! This set includes 54 parts in total. Personality parts such as eyes and teeth are what makes this red truck a monster - then use the rods, connectors and wheels to bring him to life! You can build bigger, scarier Monster Trucks by combining Twin Serpent with Ogre, or combining him with the other three sets for the Ultimate Monster Truck! Recommended for builders ages 5+. Standard K'NEX parts made in the U.S.A. Special components made in China. Packaged in China.