1.The main body of the chassis is made of Laser-Cut Clear-Acrylic sheet and can hold two gear motors on either side and two supporting universal castor wheels.
2.It has double deck chassis sheet and also holds a battery container for two AA batteries (not included) with battery terminals that protrude through the chassis and can be accessed from the top.
3.Each dual shaft motor has one side holding the wheel while the other is connected to an encoded disk. The chassis has enough holes and openings for mounting Sensors, Servo, Motor Drivers, and control modules.
4.This kit can be used to build a robot for distance sensing, Obstacle Avoidance, Line follower, Flame Detector, Speed Tester, Wireless remote controlled Car, and any other creative works.

Feature:
Simple mechanical structure and easy installation.
Smart robot car with code and ideal for DIY.
Using for distance and speed measurement due to the tachometer encoder with the car.
Multi-function and various kinds of positioning holes for all kinds of modules.
Can be used with popular microcontrol.

Note:
This car is the tachometer encoder.
Come with a 2 AA battery box (batteries not included).
The car Chassis is transparent; you need to tear out protective paper.

Package list:
2* Base Board
2* The Wheel
2* Deceleration DC Motor
2* Speed encoder
4* Motor bracket
2* Universal wheel
4* 30 mm copper column
4* 30 mm round head screw
8* 8 mm double pass the pillars
8* 16 mm round head screw
4* 8 mm round head screw
1* Battery Container (not included batteries)
All Necessary Screw And Nut