This is an N Scale Electric Diesel Horn Oil Tank from Bachmann. Suitable for Ages 14 & Up. FEATURES: Use a screwdriver to adjust the pitch controller on the underside of the tank to produce different diesel horn sounds Push button operation Attach two spade connectors to the AC terminal on your power pack Detailed pictorial instructions INCLUDES: One N Scale Electric Diesel Horn Oil Tank REQUIRES: Installation on layout Adult supervision SPECS: Scale: N 1/160 Width: approx. 2-7/8" (73.02mm) Height: approx. 1-1/4" (31.75mm) COMMENTS: Keep away from children under 3 years of age due to choking hazard