Straight Blade Plugs: Plug Type - Locking; Rating - Amps - 20A; Rating - Volts - 125/250V; Number of Poles - 3P; Number of Wires - 4W; Ground - Grounding; NEMA - L14-20P; Cord Diameter - 0.595 - 0.895; Material - Nylon; Color - Black/White; Manufacturer Brand - Twist-Lock