Truck Air Horn Kit Two Trumpet 110 PSI 12V Compressor Pressure Gauge 12ft Tubing<br /><br />Specification:<br /><br />Air Horn:<br />Long horn: about 29cm(L)<br />Short horn: about 22.7cm(L)<br />Width: about 15.4cm<br />package size: about 31.5cm(L) X 17