ITEM NAME:Boat Car Van RV Vehicles Battery Isolator Switch Disconnect Power Kill Key Description: Operation: used for DC 12-24 V systems, On/Off 2 position Heavy Duty: ABS plastic and solid metal nuts / washers, rust and corrosion resistant, durable made for safety use. Convenience: easy to install & simple to use with removable key, waterproof cover for key hole. Purpose: used for battery to isolate and secure the electrical system, eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely. Application: Used for Car, Vehicle, RV and Boat, also electrical equipment's switch. Specification: Material: Plastic + Metal Size: 100mm/3.94 inch Package Includes: 1 Piece Battery Isolator Switch Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-3mm differences due to manual measurement. SKU: DMO0011667652038993.1 Piece Battery Isolator Switch. Purpose: used for battery to isolate and secure the electrical system, eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely.