This set is, essentially, three small based air cleaners from the small center carb of the 59 to 65 air cleaners. Show Quality, mirror chrome. Excellent reproduction. Includes ALL parts needed, unlike others. Three bases, three paper elements, three chrome lids, three bottleneck studs, three correct chrome wingnuts, AND three carb to air cleaner gaskets. NO disappointments. Also fits 348 tripowers and Olds J-2