Features 1、It has the functions of power connection, stabilize current and battery protection. 2、Made of high‑quality brass, it has strong conductivity, high strength and high hardness. 3、The tin‑plated surface can prevent oxidation caused by high temperature and other complicated environments. 4、It is very suitable for boats, trailers and other vehicles, and can be used for a long time. 5、The installation is simple and does not require complicated operations. Specification Item Type: Battery Connector Material: Brass Purpose: Power connection, stabilize current, battery protection Positive Opening and Closing Size: Approx. 17.5-19.1mm/0.7-0.8in Negative Opening and Closing Size: Approx. 15.9-17.5mm/0.6-0.7in Package List 1 x Positive Battery Connector 1 x Negative Battery Connector 1 x Hex Wrench