Tezla Audio 8 Gauge Ground wire Hyper-twist 735 strands tinned copper construction, black flexible jacket, O.D.: 6.7 mm, 250 FT / 76.2 meter per spoolTezla Audio 8 Gauge Ground wire Hyper-twist 735 strands tinned copper construction, black flexible jacket, O.D.: 6.7 mm, 250 FT / 76.2 meter per spool