CU Splice Reducer, Barrel A 4 Flex G,H,I,K,M,DLO, 4 AWG, Barrel B 8 Flex G,H,I,K,M,DLO, 8 AWG, Standard Barrel, Internal Chamfer, Tin Plated, Connector is UL/CSA, 90™C Up to 35kV, Kit comes with Clear Heat Shrink, Gray/Red Color Code, 8/49 Die Index.