The Curien Round Pin Terminal Connector Set is gold plated and has both male and female pins to directly connect to specific pins or fit into female pin slots on any round connector. The set is ideal for connecting directly to sensors, ECM's, or other connectors to slide directly into the circuit connector without attempting to back probe the wiring and/or damage the terminal fit of the connector or seals after users are done. The male and female sizes are: 1.5mm, 2.0mm, 2.5mm, 3.5mm, and 4.0mm. The set also includes a female spade slot adapter to fit male spade connectors and a 3" flexible extender to allow users to connect to pins in deep connectors.