This is for use with the Nintendo Switch game called Mario Kart Live Home Circuit. This is sliced for an MK3S with an MMU.
This is designed for a MMU to print. If not using the GCODE, load the base first. Then click on the base and load the arrows as a Modifier. The arrows should drop right into place for slicing.
If you don't have a MMU I guess you could print each piece separately and glue the arrows on to the base.
The author hasn't provided the model origin yet.