K'NEX Thrill Rides - Clock Work Roller Coaster Building Set &ndash; 305 Pieces &ndash; For Ages 7+ Engineering Education Toy HOUR-HAND INSPIRED ROLLER COASTER  KNEX Clock Work Roller Coaster Building Set is a motorized coaster car toy that brings the exhilarating amusement park experience to your home. The hour hand lifts the car upward on the 2.6-feet-high track and lets it go once it reaches the summit, racing through the twists and turns as it roars to life. This roller coaster building set provides endless hours of fun and works well with other KNEX toys QUALITY PARTS  This KNEX toy set contains 305 KNEX parts. It includes rods, connectors, a roller coaster track, a red coaster car, and a motor. These pieces connect together to create a fun and engaging roller coaster ride. The roller coaster requires 2 AA batteries to operate (batteries not included). FULLY-FUNCTIONAL SET  The Clock Work Roller Coaster Building Set is fully functional and recreates a real roller coaster. It captures the thrilling kinetic charm of the sky-high amusement park ride for childrens enjoyment. The coaster car moves up and down the tracks with amazing ease, giving kids a sense of satisfaction after hours of construction. Kids can build an exciting living room attraction or turn their room into a colorful theme park. FOR CHILDREN AGES 7+  Ideal for children ages 7 and up, this engrossing and brightly colored set not only offers enjoyment but also enhances childrens skills. Children will benefit from its complex yet easy-to-understand layout, challenging their minds and hands at an intermediate level of difficulty. STEAMagination: Its the connection of STEAM (science, technology, engineering, arts & math) with a childs natural curiosity and creativity and it powers the fun of each and every KNEX building set. Building with KNEX puts children on a path towards a fundamental understanding of STEAM/STEM subjects. THRILL OF THE BUILD: KNEX Thrill Rides allows each child to build bigger models that move to create an amusement park right in their home! Using the included parts and pieces, each KNEX Thrill Rides building set you can build a massive roller coaster, a majestic spinning Ferris Wheel and more  the heart pounding fun is only limited by your imagination. Packaging may vary. DEVELOPMENT BENEFITS: KNEX supports key areas of a childs developmental growth. As they click the different parts together and discover how the building system works, theyre strengthening hand-eye coordination, fine motor skills, problem-solving skills, spatial awareness and exercising their imagination! PARTS GUARANTEE: Broken part? Missing part? If you find yourself in need of a replacement for any reason, just give us a call! Well get you what you need so that your child can get back to building as soon as possible.