This product is a vintage air filter screen set for 1964-66 GTO and 1966 Cutlass Tri Power models. It is a clamp-on type with a 4-inch diameter and 1 7/8-inch height. The set includes no items and comes with easy installation features. The air filter is made of metal and has a universal fitment. It is an original equipment manufacturer (OEM) part with the manufacturer part number TP3545Z. The product is manufactured in the United States and is a performance part.