1Made of a 100% nonmagnetic stainless steel material with a bright polished finish that will not rust. 2It is specially designed for external use, very suitable for marine applications in saltwater environments, but can also be used for other vehicles with 12V systems. 3The installation is simple, only two wires can be easily connected, and no omboard air system is required. 4Package including air horn, 2pcs rubber gasket, 5pcs screw, 5pcs nut and 10pcs gasket, which can meet your needs. 5This air horn will be a perfect choice for boats, RV's, SUV's and trucks, and the volumn is loud. Condition: 100% Item Type: AirHornColor: ChromeMaterial: 304 Stainless SteelPower Source: 12VSize: Approx. 40x10.5mm/1.6x0.4inApplication: For Boats, RV's, SUV's and Trucks 1 x 12V AirHorn2 x Rubber Gasket5 x Screw5 x Nut10 x Gasket