An assortment of stainless steel internal retaining rings from The Hillman Group. Retaining rings are used to secure parts onto shafts. They fit into grooves in the shaft for a snug fit. Proper fit determines reliability and proper functionality. Variants included in this assortment range from 1/4" to 1-1/2" in diameter. Full assortments of #45208 contain thirteen (13) refills comprised of Hillman item numbers #45209 - #45221.