ITEM NAME:Auto Car Motorcycle Waterproof Cigarette Lighter Socket Power Outlet DC12V [Conversion: 1in. = 2.64 cm | 1 cm = 0.39 in.].Suit for cigarette lighters to install in any 12V motorbike, boat, riding mower, tractor or car. Type:Cigarette Lighter Socket. Cigarette Lighter Inner Length:4cm. -With a cover, waterproof and dustproof.