The GCP1 is an AC Port Plug with an integrated extension cable (16-inch) that offers optimal flexibility and ease of installation. It can mount to the exterior of any vehicle to make the charging port more accessible. Quickly plug-n-play with any extension cord. It requires zero cable modifications or hard wiring. Its sleek, ultra low-profile design works seamlessly on any application and includes a snap-fit cap for a watertight seal. Perfect for engine block heaters, battery chargers, home improvement and much more - it has endless possibilities. Rated for use at 15 amperes, 125 volts, UL certified and fits into any standard 2-inch hole size.