The "Leg Wheel Charcoal NK22CK-L" appears to be a part or component for a specific grill model, possibly from the Napoleon NK22CK-L series of charcoal grills. It is likely related to the legs or wheels of the grill, possibly used for mobility or stability. If you have a specific question or need further information about this component or its usage, please provide more details, and I'll do my best to assist you.