Go back in time with the K'NEX Infinite Journey Roller Coaster Building Set! The slingshot launcher sends the coaster car up the hill and spiraling through the track! This set comes with 353 parts, primarily rods and connectors, to build an exciting working thrill ride! The K'NEX Thrill Rides line allows children to build an entire theme park in their room as heart-pounding roller coasters, majestic Ferris wheels and more come to life before their eyes. All K'NEX parts and pieces are guaranteed for a lifetime of fun and all K'NEX bricks, rods, and connectors proudly made in the USA. This set is perfect for builders ages 7 and up. Build a unique Roller Coaster that stands approximately 2 feet tall Includes 353 colorful K'NEX parts, track, and coaster car No batteries needed - coaster car is powered by slingshot action Easy to follow building instructions Recommended for ages 7+