4WD Smart Car Chassis Kits For Robot
Its DIY Kits,need to finish it yourself,
Package list
1 * HC-4 upgrade version of the lower car chassis
1 * HC-4 car top expansion chassis
4 * DC gear motor 3-6V (27rpm or 125rpm)
4 * rubber tires
4 sets of fixed motor L metal stents (with matching screw nut)
4 * padded long studs (with matching screw nut)