- Reliable Construction : Made of durable brass and ABS, this battery disconnect switch offers dependable performance and effective insulation, ensuring safety during use. - Perfect Compatibility : Designed for 15-17mm battery top post negative terminals. Please confirm compatibility before purchasing for optimal fit. - User-Friendly Operation : The Blade Master Switch allows for effortless control over your power supply. Quickly cut off battery power with a simple press or lift of the blade. - Versatile Applications : Ideal for a wide range of vehicles, including cars, trucks, RVs, and boats. Compatible with both 12V and 24V systems, making it perfect for seasonal or emergency use. - Secure Seasonal Storage : Use this switch to safely disconnect power in your RV or boat during off-seasons to prevent battery drain. - Emergency Power Cut-Off : Easily access your power shut-off mechanism in case of emergencies or maintenance, promoting enhanced safety for you and your vehicle. This battery disconnect switch combines practical functionality with solid construction, ensuring peace of mind for your automotive and recreational needs.