Made of high-quality solid brass material, which is more conductive than other materials; rust-resistant and sturdy, it can be used for a long time. Easy to install, perfect for trailer brake controls and other accessories that require direct power, easy to operate. Package contains most of the items needed for replacement. Direct fit replacement unit with maintenance-free connection. 2 standard stud threads. Battery terminal adapter set with M8 male and M8 female threads. Adapter height: 1.18 inches. Bottom hex size: 0.78 inches. For connecting automotive style battery cables. Color: gold Material: brass Package Contents: 1 x Brass Negative Extender Bolt Terminal 1 x Brass Positive Extender Bolt Terminal 2 x Stainless Steel Studs 4 x Stainless Steel Gaskets 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 to be slightly different from the real thing. Measurement allowed error is +/- 1-3 cm.