General Description: Insulation shell that allows for quick battery removal and new battery insertion, while still being firmly secured. Ideal for batteries installed in tight spaces, these connectors offer a quick release. Technical Specifications: Material: Plastic and Metal Color: Red and Blue Quantity: 1 Pair Inner Diameter (Positive): 19mm Inner Diameter (Negative): 17mm Compatibility and accessories: Compatible with conventional round terminal batteries only. Installation: Easy to install thanks to its practical design. Follow the included instructions for secure mounting. Usage: Use the connectors to replace batteries in confined spaces, ensuring a quick and secure connection.