[Material] The battery clamps are made of high-quality materials, which is strong and durable, has good corrosion resistance and rust resistance and has excellent electrical conductivity. Can be used for a long time. Compatibility: 8 mm clamping screw on the pole / 1 bolt and nut for attaching a ring eyelet, only for vehicles with large battery poles (most German vehicles) - not suitable for small battery poles (most vehicles from the Far East). Easy installation: car battery pole terminals are marked with (+) and (-) identification, easy to avoid the risk of electric shock and easy to install and use. Size: standard size car battery clamps, easy to recognise, please check the size when buying and whether it fits. Package includes: battery clamps (1 x plus + 1 x minus), heavy design. Specifications: Colour: silver. Material: metal. Weight: 80 g. Size: 4.8*3.6*2.1cm Product type: battery clamp. Package includes: 2 x battery terminals (1 x plus + 1 x minus)