DEURA SPARE REPLACEMENT RUBBER BULB VINTAGE ANTIQUE BRASS CAR TAXI HORN with Reed This is a replacement rubber bulb for a mini taxi horn. The rubber bulb is approximately 3” inches in diameter. The brass tube-fitting is of 1.5 inches in length and approximately 5/8 inch in diameter. This replacement bulb is 7" in length and the width of the bulb is 3". The tip is 11/16". The bulb is about the size of a softball. The Spare bulb is the female end that screws over the treads on the horn (male) end with a 5/8" fitting. Features: Replacement bulb for the taxi horn 7" in length 5/8" fitting 100% Brass Material Brand New!