Description: The chassis body is made from aluminum alloy With large load capacity, the car body is not easily deformed Compatible with a variety of devices: The supporting plate designed with holes for mounting various controllers. The front panel can be equipped with sensors, LED lights and the other devices Easy to assemble For RC car race and competitions, educational design, engineering Prototype, DIY robotic projects design Specification: Material: Aluminum Alloy Size: 240 x 215 x 85mm / 9.45 x 8.46 x 3.35inch Motor: 25mm 12V Motors Wheel Color: Silver Load Capacity: about 1-5kg A Without Encoding Disk B With Encoding Disk Package Includes: 6 x Car Boards 4 x Motors 4 x Wheels 1 x Set of Screws Note: Parameters of 12V 25mm DC Motor: Rated Voltage: DC 12V Original Speed: 12000 RPM Reduction Ratio: 1: 34 No-Load Speed: 330rpm/0.24A Maximum Stall Torque: 13kg.cm Stall Current: 4.8A Shaft End Length: 14.5mm Screw Mounting Hole: M3.0 Motor Shaft Diameter: 4mm, D3.5