Pave the way to bright future for your child and give him toys that let him learn while playing. Let him experience the thrill of building his own toy roller coaster with the Thrill Rides Web Weaver Roller Coaster Building Set from K'NEX. Build massive, moving, motorized roller coaster toys for hours of exhilarating fun!The K'NEX Web Weaver Roller Coaster Building Set contains more than 430 pieces, including gears, variously sized connectors, and multiple styles of rods-short, long, straight, and curved-for creating a gigantic coaster that will make your child want to spend more hours in playtime. The rods and connectors can be attached easily to create a coaster that stands 2.5 feet high.The air-propelled coaster is equipped with a battery-powered motor that lets the car travel at high speed and through vertical and horizontal thrills. For the ultimate in fun, let your child flip the coaster while the car is traveling through the tracks and witness the amazing performance of the air propelled car!The K'NEX Web Weaver Building Set has step-by-step color-coded instructions to walk you and your child through the process of building a gigantic coaster that your child will want to start experimenting with immediately. Head over to knex.com to download instructions for a second roller coaster model!Develop your children's understanding of STEAM (science, technology, engineering, arts, and math) concepts by igniting their natural curiosity and creativity. Building with K'NEX puts children on the path to a fundamental understanding of STEAM subjects. Let them design, construct, and customize their own K'NEX models and enjoy hours of fun playing and learning with them.Learning is fun! Get your child a K'NEX Web Weaver Roller Coaster Building Set today and let him enjoy thrill-filled playtime while honing his potential to become the next great builder of his generation!