An assortment of stainless steel retaining rings from Hillman. Retaining rings are used to secure parts onto shafts. They fit into grooves in the shaft for a snug fit. Stainless steel ring variants in this assortment run 1/4" thru 1-1/2" in diameter. Full assortments of #45193 contain thirteen (13) refills comprised of Hillman item numbers #45194 - #45206.