Professional 3WD Smart Robot Car Chassis Kit with 58mm Nylon Omni Wheel & DC Encoder Motors for Arduino Raspberry Pie Microbit, 2-Layer Metal Triangle Panel Robotic Platform DIY Heavy Load Model

One of the couplings does not have M4 threads, so I had to buy a tap screw. Also, one of the section of omni wheel is also stuck so I have to fix it some how.

The media could not be loaded. There is literally no way for the wheels to stay on. The hardware provided just slides right through the wheel axle. No way of contacting the seller and amazon will give a refund after 30 days sending it back. A waste of $77. Do not buy.

Two of the three motors burned out right before our competition, encoders threw pretty much random values, axels aren't mounted centered and the wheels are only mounted using friction which results in a lot of slipping if you have any payload at all, not sure what's $80 in this kit unless it's to cut some holes in an aluminum sheet for the mounting plate.