This 100dB black steel horn runs on 12V, it is 70 mm in diameter and is E-marked road legal.
This 100dB Stainless steel horn runs on 12V, it is 72 mm in diameter and is E-marked road legal.
This large chrome horn runs on 12Volts, it is 100 mm in diameter and is NOT E-marked.
This 110dB black steel Italian style horn runs on 12V, it is 80 mm in diameter and is E-marked road legal.