Tips for Playing: This boy toy needs you to take skill to keep the race cars on track. You are required to slow down the car's speed just like a normal car going around corners. Cars must be correctly positioned before driving. Cool Race Car Track: It's an eye-catching slot car race track sets for kids adults! This electric toy car track contains double 360° rotating tracks with dual tracks, 41:43 scale ABS slot cars with built-in LED light, 2 adjustable speed controllers, 12 stackable bridge piers, 8 corner guardrails and a 5.5 ft track. 2 Adjustable Speed Remotes: Adjust the car's speed by pressing down the turbo boost button on top of the controller. You can drive the cars in slow or fast speed to improve your driving experience. Upgraded Tracks Connectors: Bigger and looser connectors make the tracks assemble easier. Enhanced metal magnetism can keep the cars running more steadily on the track without derailing easily. Stable Corner Guardrails: Setting sturdy guardrails on the major turns to prevent your cars from crashing out of the track. It can largely improve the safety of the competition games. Stackable Bridge Piers: The bridge piers can be stacked one by one. They can raise part of the track to a certain height. They can raise part of the track to a certain height, that can add more fun to your racing games. Correct Usage of Brush: Put the brush head towards the rear of the car (The brush head forms a fan shape). The brush head angle is 45° with the bottom of the slot car. Please DO NOT contact the brushes together or make the brush head towards a wrong angle. 🏁Battery Powered Car Race Track: The 5.5FT track layout features 2 loops and high-banked curves, giving you exciting action all over it. There're 4 1:43 scale slot cars (2 racing cars and 2 replacement cars) and 2-speed adjustable rc controls. Kids can control the electric boost button to low speed, avoiding cars flying off the track from the turns. They can also control fast speed to experience