With this versatile kit the technician can create connections on the spot in seconds. All 8 types of male and female adapters are included. Just screw on any combination of 24 connectors to any of six universal interfaces. No soldering or crimping need. Connectors are reusable and can be used over and over in different combinations to fit and assist customizing the installation. All contacts are gold plated. Connector bodies are silver plated machined brass with Teflon insulation. The zippered, soft case protects and organizes the collection.