This battery terminal connector set is made of premium brass for maximum durability, high conductivity, and reduced power loss. The tinned coating resists rust and corrosion for long-lasting performance. Features a quick release handle design for tool-free installation and instant disconnection, improving safety during repairs or emergencies. The M8 25mm bolt fits most battery cables and allows multiple wire connections. Clearly marked red positive and black negative terminals ensure correct installation every time. Suitable for 12V 24V vehicles, including cars, trucks, vans, RVs, and marine batteries. Easy install, secure connection, and reliable performance.