Combined auto emergency tool kit, design for women to change tire in emergency. Key Specification/ special features: Easy to operate: just plug it into the cars cigarette lighter to get the electric power from the car Electrically changes a tire nut within 3 to 4 seconds With new design: able to deliver an amazing torque of 340 N.m Easily raises a car electrically within 74 seconds This tool kit includes 12-volt DC auto impact wrench, one interchangeable adapter, sockets, scissors jack, triangle warning reflector Stored in a blow-molded case Includes different sizes of sockets (either metric or inch sizes) Metric sizes of sockets: 17, 19, 21, 22, 23 mm Inch sizes of sockets: 11/16,3/4, 13/16, 7/8 inches