This is a seven-pin female pin. The pitch length is standard 2.5mm between pins. This is used to make add and break connections between two devices such as battery and plane motors, robotics and board panel, etc. These connectors are wire-to-wire connectors that perform reliably in high-density and small current applications. The wire is attached with them for easy installation. The connectors are built from high-quality plastic material. With each insertion and withdrawal, the mating contacts wipe against each other to remove foreign matter.