Features: MAIN FUNCTIONPositive battery terminal connector and negative battery terminal connector.It can be installed in the positive and negative poles of the battery.It can be used for battery extension, parallel connection, and ground connection. MAIN MATERIALThe product is made from pure copper tinned, longer product life than other battery terminal connector.It features superior performance,has the best electrical conductivity to reduce voltage distortion. PAY ATTENTIONThe positive size is more wider than negative.The material inside the battery line is pure copper tinned, which has good conductivity.Designed for high current applications.Meet your car's daily needs. PACKAGE CONTAIN1 pieces of positive(18mm/0.75inch) battery terminal and 1 pieces of negative(17mm/0.67inch) battery terminal.Simply select cable length and cable lug mounting hole diameter for cable ends. A WONDERFUL GIFTOur products you can buy back for your own car use. You can also buy back to your family or friends.I think their cars also need our products.Suitable for cars, trucks, ships, trailers and motorhomes. Specifications: Material: Pure copper tinned Color: Red,black Applicable diameter(Positive x Negative): About 19 x 17mm/0.75 x 0.67inch Package Included: 2pcs x battery terminal connector Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.