GOOD QUALITY MATERIAL: The electrical plugs are made of nylon materials, durable and safe. HIGH : The female & male connector terminals are made of high tinned materials.It has better electrical conductivity and easy to be crimped. WIDE APPLICATIONS: Corrosion-resistant,wear-resistant,waterproof and dustproof, without loss of electronic qualities or leakage after installation. In-line, flange, or PCB mount are available. They are suitable for various wire connectors of car,motorcycle, scooter, truck, quad bike, , boats. EASY TO INSTALL: Just crimping tool to crimp the terminals and you can finish installations quickly. Buckle design is easy to install plug connectors. 2 Pin Set of Connector Plugs: 4 x Two Pins Male Connector Housing 4 x Two Pins Female Connector Housing 8 x Male Terminal 8 x Female Terminal 3 Pin Set of Connector Plugs: 3 x Three Pins Male Connector Housing 3 x Three Pins Female Connector Housing 9 x Male Terminal 9 x Female Terminal 4 Pin Set of Connector Plugs: 5 x Four Pins Male Connector Housing 5 x Four Pins Female Connector Housing 20 x Male Terminal 20 x Female Terminal 6 Pin Set of Waterproof Connector Plugs: 3 x Six Pins Male Connector Housing And Insert 3 x Six Pins Female Connector Housing And Insert 18 x Male Terminal 18 x Female Terminal Colour: gray Material: plastic Package Contents: 4 sets * 2-pin male and female connectors 3 sets * 3-pin male and female connectors 5 sets * 4-pin male and female connectors 3 sets * 6-pin male and female connectors 55 pairs * male and female terminals Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.