An assortment of pointer, ball and bar knobs from Hillman. These knobs are recommended for use as replacement parts for missing or broken control panel and instrument knobs in various applications. Included knob varieties range in diameter from 11/16" thru 2-1/4" and are heat and corrosion-resistant. Knobs constructed from high-strength plastic and steel. Full assortments of #55404 contain ten (10) refills comprised of Hillman item numbers #55405 - #55414.