3 Wheel Robot Car Kit for DIY projects Arduino

Specification:
Brand new
Gear Motor reduction radio: 1:48
Size: approx. 19.5cm x 14cm
Wheel size: approx. 6.5 x 2.5cm
Color: as picture shows
Mechanical structure is simple, it is easy to install
This car is the tachometer encoder
With a 4 AA battery box
Can be used for distance measurement, velocity
Can use with other devices to realize function of tracing, obstacle avoidance, distance testing, speed testing, wireless remote control