Mecanum Wheel Omni-directional Robot Car Chassis Kit with 4pcs TT Motor for Arduino for Raspberry Pi DIY Toy Parts Description: Intelligent Tracing Robot car chassis, high degree of freedom, great for DIY subject, science education, development of hobbies and interest, educational toys for kids. Mechanical structure is simple, TT motor, flexible turning, eco-friendly chassis is stability and very easy to expand. Smart robot car chassises are good products for DIY .It is an integration solution for robotics learning and made for education. Mecanum wheel robot car chassis kit can extend electronics system. Mecanum wheels smart robot car chassises are good products for DIY, Educational kit, Suitable for robot lovers, car lovers, etc. Specification: Model: SNC380 Weight: 430g Size: approx. 203x155x63mm Voltage: 3-9V Motor reduction ratio: 48:1 _x005F_x000D_