Description If you are looking for a professional and 1/0 gauge to 4 gauge reducer, then your research is over here. That's because our product can meet your need. Adopted of premium material, it is practical and for time use. It is not easy to get deformed and bring you much convenience. Features -Color:Silver -Material:Nickel Plated, 6061 Aluminum -Size:2.15X2.15X4.15cm/0.84X0.84X1.63in Wiring hole: 0GA - Compatible with oversized 1/0 car audio cables, 1/0 solder cables and 2/0 solder cables. - Made of highly conductive 6061 aluminum, nickel plated for increased resistance. - Comes with stainless steel screws and double heat shrinks, easy to install. - Outstanding workmanship, reasonable design, stable and practical, will bring you a good using experience. - Every detail is carefully crafted, so you experience the high durability and practicality. 1 x pair of amp input reducers Car Audio Power Input Adapter Ground Wire Reducer Car Audio Power Input Adapter adaptor adaptor Ground Amp Input Adapter