These are positive and negative terminal connectors, safe and durable, can support your long term of using. Reasonable design makes you to install them faster and easier. It can be widely used most kind of vehicles. Adopting iron and brass materials, it has high hardness, will not easy get deform. Features - Color: As shown. - Material: Iron, brass. - Size: 7.00X6.00X1.50cm/ 2.75X2.36X0.59inch. - Outstanding craftsmanship, this battery clamps can be used for battery extension, parallel connection and grounding. - Using brass and iron materials, sturdy and durable, good in texture, can be used for a long period. - Easy to use, the positive and negative battery terminals can prevent the risk of electrical shocks. - Compact size and scientific structure, not easy to get corrosion, you can easily install and use with less efforts or time. - Stable working performance, good conductivity, has high hardness, will not easy to break or deform. Package list: 1 x Red Positive Battery Terminal 1 x Black Negative Battery Terminal 1 x Wrench 2 x Insulated Terminals 1 x Cleaning Brush 4 x Terminal Connectors 4 x Heat Shrinkable Tubes