12V Mini Car Truck Boat Vehicle Cooling Fan Cooler Power: cigarette lighter charger 12V Fan diameter: aboout 14cm,Arm length: about 27.6cm Material: plastic Made from durable plastic with a flexible arm, the fan plugs into your dashboard's cigarette lighter socket and turns on and off at the flick of a switch. A must have for long and stuffy car journeys and much more effective than those tiny little dashboard fans!