DIY 4WD Smart Car Chassis Kits For Arduino

Feature: -This 4WD Car Chassis Kits can be a perfect DIY kit for you -Mechanical structure is simple,it is easy to install. -With a 4 AA battery box and power switch.(Batteries are not included.) -The four turn speed dc motor flexible, directional well.Quad,chronological horsepower. Chassis and stability is very easy to extend -This car is the tachometer encoder. -Can use with other devices to realize function of tracing,obstacle avoidance, distance testing,speed testing,wireless remote control. Specifications: Material:Stainless steel+ABS plastic+Brass Wheel diameter:about 6cm Floor thickness:about 3mm Car length:about 25cm Car width: about 14.8cm Package Included: 1 set 4WD car chassis kits