10 Bare Battery COPPER Ring Lug Terminal Connector #4 Wire Gauge 3/8" Stud QTY: 10STUD HOLE SIZE: 3/8"WIRE GAUGE: #4VOLTS: 600 MADE OF SOLID BARE COPPER SEAMLESS PERFORMANCE SEAMLESS BARREL FLARED BARREL ENTRY ALSO CHECK OUT OUR OTHER PRODUCTS INCLUDING WIRE AND CABLE.