The slot car racing track set includes circular tracks, curves, straights and lap counters. The slot car race car track set comes with 2 cars, 2 Hand -shake controllers, 2 electric speed controllers and some accessories, allowing you to enjoy the excitement on the track. The Slot Car Race Track Sets has electric mode and hand shake mode. The electric mode needs to be used in plug -in, and the speed of the car is controlled by pressing the controller. The hand shake mode does not need to plug in the power, and the car can be moved quickly by quickly shaking the hand shake. Each mode has a separate motherboard. The controller allows the driver to choose slowly or quickly to improve the driver's experience. You can build a track with your children to play racing tracks game. The two-person racing set is made of environmentally friendly ABS plastic material, The slot car race car track is easy to assemble. Children can refer to the instructions for assembly. You can play with your child and spend a happy parent -child time. This is the best choice for children's birthday and Christmas gifts.