The mold is intended for the tire manufacture from silicone or similar flexible material in Scale 1:10. It consists of 2 parts: top and bottom part. Each part can be 3D printed without supports.
If you want a different wheel size, simply scale the mold.
The bottom mold part has 5 special bosses and Top mold part has 5 special holes to guide mold parts in the closed state. Also, there are 4 slots for better opening with a screwdriver or similar instrument. In the Top mold part are 4 small holes for material injection. Both mold parts have 4 holes with diameter 6 mm for bolting it in closed state.