ACCEL Weatherproof Electrical 2 Pin Connectors are indexed to prevent mismatching and feature positive locks that let you know they're joined correctly with an audible click. Each package includes a male and female connector housing, wire seals, and terminals, and each terminal has its own tower so there's no chance of shorting. They're molded from a special nylon material that withstands temperatures from 257 degrees down to 40-below, and they feature silicon seals to create a reliable, durable, maintenance-free connection and resist water, dirt, and petrochemicals.