BRED Black Twin TRUMPET SNAIL HighLow Tone 12v Volt Electromagnetic Loud Dual Replacement HORN Compact Complete Universal Kit with Brackets Relay Hardware for Motorcycle Car SUV Truck Universal (Made in Italy) ReviewbP PP RED Black Twin TRUMPET SNAIL HighLow Tone 12v Volt Electromagnetic Loud Dual Replacement HORN Compact Complete Universal Kit with Brackets Relay Hardware for Motorcycle Car SUV Truck Universal (Made in Italy) PMADE IN ITALY! Dual ELECTROMAGNETIC Horns. Very compact. Universal Fitment Relay and 2 Mounting Brackets plus Instructional Installation Diagram Included.PSuper Loud - Sound Immediately Activates. No time-delay between the time you press the horn and the time it sounds. No External Air Supply NeededPMade of Metal and Thermoplastic for a Long Lasting Finish. Truly, High-Quality, NOT A CHINESE HORN! Superb Quality!PMounting Type: Single Screw - Terminal Contacts: Blade Type - Includes RELAY and 2 Universal Mounting BracketsPDiameter = PICTURED in BOTH METRIC and IMPERIAL Measurements. Horns can easily be tucked in most tight areas allowing for dimensions pictured. Will fit any car, truck, or SUV with a 12V electrical system. Will fit motorcycles with space to house compact horn (see dimensions) using 12v system.