This is a matching set of four original factory steel dually wheels, measuring 16 by 6.5 inches, that came off a 3500 series Chevy or GMC Express box van. The wheels feature the heavy-duty 8 on 6.5 inch lug pattern and a GM-specific 4.5 inch center bore, ensuring a hub-centric fit on most Chevy and GMC dually trucks and vans from the 1990s or older. Compatibility includes C-30/K-30 Square Body trucks and older dual-rear-wheel models back to the 1950s, but they will not fit Ford or Dodge applications. All four rims are in good working condition, having no bends, cracks, or damage, and can be mounted on either the front or the rear of a dually. The tires are very old and should be replaced immediately, but they currently hold air for use as rollers to move a project vehicle.