BUILD YOUR OWN ROLLER COASTER: The Sidewinder from CDX Blocks takes things into the modern age with a contemporary steel coaster style engineered for quick assembly and realistic operation via gravity, complete with a loop. REALISTIC MECHANICAL OPERATION: The roller coaster ride features an ingenious gear system to bring the roller coaster up the initial hill climb, for interactive, realistic action and playability. UNLIMITED POSSIBILITIES: All CDX Blocks model sets and accessories are compatible with the world’s leading building block system for maximum play opportunities and unlimited creativity. INTERACTIVE PLAY: Operate the ride using the included hand crank, or consider adding our custom motor to automate the action. STEAM/STEM LEARNING: Designed by an actual roller coaster engineer. Playing with roller coaster physics is a fantastic way to learn about the properties of gravity, acceleration, momentum, potential and kinetic energy.