Powerbuilt 12V Impact Wrench Kit for Emergency Tire Changes - 641187M --Compact, light and powerful impact wrench saves time and energy during emergency tire changes --No sweating and struggling with lug wrenches --Plugs into cigarette lighter outlet and uses car battery power to loosen lug nuts --Long power cord reaches all four wheels of a full-size sedan --Includes 4 lug nut sockets, extra fuse and carry case