Features 1、TECHNICAL PARAMETERS: For top post terminals, only 15‑17mm conical battery negative post, DC 12V system, rated current 125A, on or off 2 positions 2、FLEXIBLE KNOB: Knob type switch is easy to install and use. Loose or twist knob will cut off power, very convenient 3、RUSTPROOF MATERIAL: Zinc alloy material, brass plated surface, durable, rustproof and corrosion resistant, safe to use 4、REDUCE CONSUMPTION: Used for car batteries for isolating and securing electrical systems, eliminating any power consumption from batteries when vehicles or boats are not in use, safely disconnecting batteries 5、USAGE SCENARIOS: Used for car, vehicle, RV and marine batteries with standard 15‑17mm tapered top post terminals, also for electrical equipment Specification Item Type: Top Post Battery Disconnect Switch Material: ABS, brass, zinc alloy Package List 1 x Top Post Battery Disconnect Switch