This is a good parts kit for an Arduino and raspberry pi based RC car project. It not only comes with 4pcs wheels and motors, but also 2pcs motor drive modules and 60pcs jumper wires, which are very useful accessories for your project.Motor Drive Controller: L298N used as the main driver chip. It has the strong driving ability, low calorific value and strong anti-interference ability.TT Motor: The motor is a two-axis motor with a reduction ratio of 1:48, which has strong anti-interference ability.Smart Car Wheels: The wheels are made of high-strength plastic and the tires are made of durable black rubber.To avoid damage the voltage stabilizing chip of Motor Drive Module, please use an external 5V logic supply when using more than 12V driving voltage.colour: red + blue + black + yellowMaterial: plastic + metalPackage Contents:4 x Smart Car Wheel4 x DC Motor2 x L298N Motor Drive Controller Board1 x 20pin Male to Female Jumper Wires1 x 20pin Male to Male Jumper Wires1 x 20pin Female to Female Jumper WiresOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.