MATERIAL: The Melody Maker for bike is made from premium quality high performance material and the horn is made from high quality metal material with charming shape and finished by good work. Loud tone: The nikavi vehicle air horn offers you loud and clear sound to warn others. Our 12V horn helps you reduce unnecessary injuries, add a level of safety to your driving. The melody maker is Provide Specified Sound Db Level, Compact size and dust proof casing. The nikavi melody maker Genuine product always keeps your vehicle safe on road. Fit: the nikavi universal fit air horn and melody maker is fit for most motorbikes, trucks, cars and boat with 12V power.