Converts a standard 15A grounded receptacle to a twist-to-lock 20A receptacle. 15A/125V rating. Double thick 600V insulation. Manufactured with stranded copper conductors, bright yellow jacket, and solid molded plugs. Length: 9 inches. UL (Underwriter's Laboratories) listed. Meets OSHA (Occupational Safety and Health Administration) standards. This adapter ensures a secure connection for tools like drills, saws, and vacuums, preventing accidental disconnection.