"Viking Horns" brand new, 4 Trumpet Train Air Horn kit. With 150 PSI heavy duty air compressor and 1.5 gallon air tank kit. This Horn system produces a Loud Sound of 149 decibels. Trumpets and base are in black metal. Will replace your original horn, or can be installed as an auxiliary horn. Includes Mounting Hardware, Brass Fittings, 1/4" Air Hose, Electric Air Valve solenoid, 0-to-240 PSI Air gauge, 120/150 PSI Air Pressure Switch, installation instructions, Teflon tape sealer, and a FREE Horn Button. Ideal for vehicles such as Truck, RV, SUV, Pick-Up, Boat, and many other applications. Horn overall dimensions: 14" L x 6-3/4" W x 6-1/2 H. Horn trumpets lengths: 13-3/4", 11-1/2", 9-1/4", 7-3/4" with 3-3/4" front bell diameter each. Air tank dimensions: 15" L, 7-1/2" H. Air compressor dimensions: 9-1/2" L x 4" W x 6-3/4" H.