• Contents: Introducing a set that allows you to create curve courses from the Hot Wheel's "Track Builder" series You can also create a one-round course Combine with other "Track Builder" course sets to create your own course and race your Hot Wheels! • 【Track Builder】The Track Builder allows you to combine various kits such as straights, curves, loops, ramps, and boosters By continuously connecting them together, you can create endless combinations Recreate courses from around the world or your own city, and have fun racing your mini cars • Country of Origin: Vietnam. Recommended Age: 6 years and up • Hot Wheels = "Cool car!" Unique Southern California look, fast moving wheels (the latest technology of the time! and tires with red lines It is currently the best-selling miniature car in the world