Chromed plated steel round air cleaner with replaceable high flow paper element. Filter element has rubber seals top and bottom and wire screen or mesh inside and out to protect against damage. This 6-1/2 inch diameter design is ideal for use on 1v and 2v applications where space is limited, but performance is not hampered by the smaller size. The 3-1/2 inch tall open design is less restrictive to air flow as the element is open 360 degrees and not surrounded by a metal housing like stock filters. Has a flat, non drop base - just the flange where it mounts to the carburetor. The top plate is dished for appearance. Both the top and bottom plate are chromed plated as is the custom 3 sided top nut which has a black accent in the top. Carburetor stud and mounting hardware included.