This is a set of six 16x6.5 inch stock steel dually wheels from an OBS era Chevy or GMC 3500 series pickup truck. All six factory GM rims are in good working condition, though they are not a perfectly matched set. The 8 on 6.5 inch lug pattern and 4.5 inch center bore fits Chevy and GMC dually trucks and vans from the 1960s to the 1990s, including C30/K30 and G30 models. The tires are all bad and must be replaced immediately, as most are currently not holding air. This set is perfect for a work truck, motorhome, or any dually restoration project.