This robotic platform with mecanum wheels is designed to learn more about how Mecanum wheels work and how to improve the maneuverability of the robot. The smart car chassis DIY kit is simple and compact in construction, easy to assemble by yourself according the provided installation drawings.   Features: 2 Transparent Acrylic Platform: measured size in 10*6in (255*150mm), weight bearing capacity is 1kg. Double-layer structure for easy extensibility, such as adding various sensors or controllers on it.  4 Mecanum Wheels: 4pcs 65mm Mecanum wheels can be moved in any direction without changing the direction of rotation of the wheels. They are made of sturdy engineering plastic and are not easily damaged.  4 DC 6V 200rpm Motors. 4pcs deceleration DC motors provide higher power and speed.  4 Velocimetry Code Wheels: upgraded 20-grid coded wheels enhance the accuracy and strength of velocity measurement.  Easy to Assemble: installation drawing is provided, and the smart car chassis is very simple to assemble, which allows you to get a assembled car within minutes.   Installation: 1.Insert the fastener into the chassis after tearing off the yellow protection wrap of the chassis, the fastener and the code wheel.  2.Install the code wheel and fix the motor to the chassis.  3.Fix the motor to the chassis, then insert and tighten the screws.  4.Hold tight and insert the motor(protection fastener) to the wheel.  5.Insert the spacer, insert the screws from the downside and tighten them form the upper side.  6.Installation completed.   Specifications: Material: ABS;  Item Size: 255 * 150mm / 10.04 * 5.91in;  Item Weight: 562g / 19.82oz;  Package Weight: 636g / 22.45oz;  Package Size: 27.5 * 17 * 5cm / 10.83 * 6.69 * 1.97in;   Packing List: 2 * Acrylic Chassis;  4 * 65mm Wheel;  4 * TT DC Motor;  4 * Velocimetry Code Wheel;  6 * L30+6 Spacer;  8 * Fastener;  8 * M3*30 Screw;  6 * M3*6 Screw;  14 * M3 Nut;   Note: The smart car chassis comes in bulk parts, which need to be assembled by yourself.