The 2-pin connectors are made of plastic, a material that is thermally stable and makes the electrical connector and wear . Plug and play, easy to install under soldering and crimping. The waterproof connector only takes to install and is tight enough after merging and crimping. Waterproof Wire Connector: 16 AWG Male Female 2 Pin Connector Plug is High Quality, IP67 Waterproof Connector Plug with 5.5 Inch Wire. Wide range of applications: The car connector is a 2-pin waterproof connector plug, suitable for motorcycles, scooters, cars, trucks, quad bikes, tricycles, caravans, boats, jet skis, boats and other wire connections. size: 14cm Material: Plastic colour: black Package Contents: 6 x female plug wire 6 x Male plug wire Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.