Móc khóa 4WD

A key ring for 4WD enthousiasts!
Print the key ring in your favourite color(s). 
Choose the long or short wheelbase version.
There are 4 rim and 3 tyre designs. 

Printing
I printed the model on a Prusa MINI, with PLA+ filament. Layer height 0.15 mm.
5 perimeters.  Slicing in PrusaSlicer.
Avoid elephant foot and over-extrusion.
Printing instructions with every .stl file.

Assembly
Assembly is in alphabetical order (A→F).
As always with mechanical models, be sure all moving parts run smoothly. 
I use files, sandpaper and sharp hobby knifes. A few drops of motor oil may help.