Ken Sean 16300 Black 3" Diameter Universal 105DB 12-Volt Motorcycle Horn 12-volt horn 2 terminal type with a diameter of 3 and universal chrome mounting bracket at 2 7/8 long 105 Decibels (DB) with frequency range of 430-460 Hz Fits all 12-volt systems Universal fitment for all 12-volt motorcycles Water resistant gasket results in repelling water and moisture from rain and humidity