60 Copper Lugs Assortment Kit by A Plus Parts House *** 6 Gauge: 3pcs 1/4", 3pcs 5/16", 2pcs 3/8", 1pc 1/2" *** 4 Gauge: 6pcs 1/4", 6pcs 5/16", 6pcs 3/8", 6pcs 1/2" *** 2 Gauge: 6pcs 1/4", 12pcs 5/16", 6pcs 3/8", 3pcs 1/2" Electrolytic Copper mechanical lugs made from pure 100% conductive electrolytic Copper Bright Copper finish standard Full contact, highest efficiency Copper lugs are completely re-usable