These are the fresh air / heater duct 3” clamps used on 1940 - 1966 Cadillac's. This is a set of 6 of them. These are in good shape, there is some minor surface rust on a couple of them, but overall they are in good used shape. Good used parts that can be hard to find. Comes as shown, Sold As Is. Please let me know if you would like any other info. Thanks