Print setup: PETGmaterial Layer height 0.2 4 perimeter lines Octagonal infill configuration 40% Requires 6 ball bearings 12x12x35 inside the files you will also find the wheels that you can print . I bought 180 MM wheels with a 12 mm hole for outdoor use while for indoor use you can use the ones printed by you! For transport by car, if you loosen the 2 central pins, it becomes foldable