The Altech Banana and Tip Connectors - Jacks, Plugs 930729103 are a reliable and durable solution for electrical connections. These connectors feature banana plugs and sockets with a 4mm diameter and a 20K yellow finish. The banana plugs and sockets are designed to provide a secure connection and are suitable for a variety of applications. The connectors are made from high-quality materials and are designed to withstand harsh environments. They are easy to install and provide a reliable connection for a variety of electrical applications. The Altech Banana and Tip Connectors - Jacks, Plugs 930729103 are a great choice for any electrical connection.