Three Model 630 chrome trumpets 17.5, 15.5, 11.5 in length. Flat rack detachable design allows numerous installation options. Includes a BlastMaster valve upgrade kit that pushes 157.3 dB! Includes a 150 psi, 100% duty compressor, 3 gallon tank, bonus tire inflation kit with storage bag & all parts needed for installation. Easily powers your horns & accessories like air bags and small air tools.