Mini Stainless Steel Single Drop-In Horn with Stainless Steel Grill - 12V High PitchFeatures:High pitched304 Stainless steel inside and out5-year GuaranteePrewiredMounting holes have 4" centersHardware not included3"L x 3-1/4"W x 1-1/2"H (7.5 x 8 x 4.5cm)