Pipeman Mini Train Horn 4 Horns

4 horns: each one is a different size -9-1/8" long 3-5/8" diameter -12" long 3-3/4" diameter -13-3/4" long 3-3/4" diameter -14-3/4" long 3-3/4" diameter Made from zinc alloy material for horns Chrome plastic base Sound level 125 dB's Requires THSY3075C OR THSY5150C air compressors