MUYI 5 Sets 18AWG Waterproof Electrical Connectors Kit 1.5mm Series Terminal & Rubber Seal with 10cm Wire Weatherpack Connectors (4 pin) 18 AWG male & female waterproof connectors with 10cm wire. Operating temperature : -10~+80. 4 position rectangular black housing connector (hole dia: 0.24"). Easy to install under soldering and crimping. Use for car, truck, boat, motorcycle, and other wire connections.