Features Efficient On/Off Control: This battery switch provides reliable on/off functionality for effective power management, avoiding unnecessary current draining during downtime. Important application width: battery switch 12 V disconnect switch compatible with systems from 12 to 48 V, for cars, boats, caravans, campers, radio clock and a variety of electrical devices. Perfect for travel and outdoor sports. Easy connection points: Battery main switch Integrated connection points provide direct seating at top negative endpoints without the hassle of additional cables or connections, easy to see if switched on or off. Materials: battery isolators switch made with sturdy copper to ensure durability and improve safety in various applications. Perfect for use in harsh conditions. Waterproof design: the battery cut-off switch waterproof function protects against accidental disconnections and current discharges during idle times in vehicles or boats, reliably against moisture and corrosion. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: Brass+Iron Screws/Nuts Chuck diameter: Negative electrode 15-17mm Net weight: about 230g/pcs Center distance: 97.5mm Knob width: 42mm Knob height: 22.5mm Column head diameter: 15-17mm Chuck inner diameter: 15-17mm Base height: 18mm Base width: 54mm Package List: 1x Battery Switch