Fully Finned Cast Aluminum 15" Air Cleaner Assembly - Fits 5 1/8" carburetors (Edelbrock, Holley, Demon, Rochester Etc.) - Fins are polished and as cast in between the fins - Overall measurements are 15" X 8 5/16" X 3" - Will clear HEI distributors - Great finishing touch for your Hot Rod, Rat Rod, Muscle Car, or Custom - May have small imperfections and/or polished surface may vary slightly from photos.