MATERIAL: The electrical wire connector plugs are made of nylon materials, and safe. HIGH PRECISION: The female & male connector terminals are made of high precision brass tinned materials.It has better electrical conductivity and easy to be crimped. WIDE APPLICATIONS: -,wear-,waterproof and dustproof, without loss of electronic qualities or leakage after installation. In-line, flange, or PCB mount are available. They are suitable for wire connectors of car,motorcycle, scooter, truck, quad bike, caravan, boats. EASY TO INSTALL: Just use 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: 8 x Two Pins Male Connector Housing 8 x Two Pins Female Connector Housing 16 x Male Terminal 16 x Female Terminal 3 Pin Set of Connector Plugs: 6 x Three Pins Male Connector Housing 6 x Three Pins Female Connector Housing 18 x Male Terminal 18 x Female Terminal 4 Pin Set of Connector Plugs: 10 x Four Pins Male Connector Housing 10 x Four Pins Female Connector Housing 40 x Male Terminal 40 x Female Terminal 6 Pin Set of Waterproof Connector Plugs: 6 x Six Pins Male Connector Housing And Insert 6 x Six Pins Female Connector Housing And Insert 36 x Male Terminal 36 x Female Terminal Colour: gray Material: plastic Package Contents: 8 sets * 2-pin male and female connectors 6 sets * 3-pin male and female connectors 10 sets * 4-pin male and female connectors 6 sets * 6-pin male and female connectors 110 pairs * male and female terminals 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.