The product is a set of 5 FelPro 25560 metal exhaust flange gaskets designed for Datsun 510, 512, Pickup, 610, and 720 vehicles. These gaskets are made of gray metal, have a bolt hole quantity of 3, and are manufactured in the United States by Fel-Pro. They are specifically designed for the exhaust manifold placement on the vehicle and are not considered vintage parts. The gaskets come with a California Prop 65 Warning for cancer and reproductive harm. Additionally, they are compatible with interchange part numbers 521618, 820072, 344050, and 711501500, and OE/OEM part numbers 20711A0800 and 2071121001. Exact item set is shown. Vintage new old stock without original packaging. Set weight 3 oz. Made in USA. No returns on installed items or partial sets. Please review our business policies in our store for information regarding returns, shipping and warranties.