For use with LiteHawk ACE 4x4:
This package comes with 4 pieces.
Wheel Hex Adaptors
Be careful of the Hex nut underneath the Wheel. It just slides on and off, and may come off with the wheel. It holds the Axle pin in the Axle by enclosing it in a slot. If it slips off a bit on the Axle, the Axle pin may slip out.