Collect and build with the KNEX Vertical Viper, the second of three in the new Amusement Park Series! This building set is motorized for an exciting performance that sends the car up the chain lift and spiraling through track! This set comes with over 300 parts, primarily rods and connectors, to build a KNEX thrill ride that stands over 1.5 feet tall! And if you collect Corkscrew Coaster and the Ferris Wheel, you can have a working amusement park right in your home! Recommended for builders ages 7 and older. This set requires 2 AA batteries (not included).