An assortment of medium-duty electrical clip and insulators from The Hillman Group. Full assortment includes battery clips in steel and copper variants, as well as black-negative and red-positive plastic insulators for these clips. Parts come engineered for 20-amp, 24-amp, and 40-amp capacities. Full assortments of #50279 contain eight (8) refills comprised of Hillman item numbers #50280 - #50287.