Mechanical structure is simple and the installation is convenient.; Intelligent robot car with 4 TT DC gear motor is very suitable for DIY.; Four motors + anti-skid tires can provide more powerful driving force.; The reduction ratio of the motor is 1:120. Compared with the ordinary car, the torque is greater, the power is stronger, and the load capacity is greater!; The robot chassis kit is made of sturdy aluminum alloy material, size: 180*140*89MM, maximum load is 1500g.