1304 stainless steel material, with a bright polished finish, anti?rust, non?magnetic, maintenance free. 2Dual trumpet design, provides loud and clear sound, which is practical to use. 3Wide application, can be used for marine applications and vehicles with 12V system. 4Simple connection, only has 2 wires, does not require an on?board air system. 5Including mounting hardwares, it is easy to install, save your time and effort. 1 x Dual Trumpet Horn 2 x Rubber Pads 3 x Mounting Screws 3 x Screw Caps 5 x Gaskets Condition: 100% Brand New_x000D_Item Type: Air Horn_x000D_Material: 304 Stainless Steel _x000D_Color: Chrome Color_x000D_Power Source: 12V_x000D_Application: Suitable for Boats, RV's, SUV's and Trucks 1304 stainless steel material, with a bright polished finish, anti?rust, non?magnetic, maintenance free. 2Dual trumpet design, provides loud and clear sound, which is practical to use. 3Wide application, can be used for marine applications and vehicles with 12V system. 4Simple connection, only has 2 wires, does not require an on?board air system. 5Including mounting hardwares, it is easy to install, save your time and effort. 1 x Dual Trumpet Horn 2 x Rubber Pads 3 x Mounting Screws 3 x Screw Caps 5 x Gaskets