★ Yamaha Genuine Brass Slide Bar Bottle Neck A super rare gem from the early 1970s, made by Yamaha! Made of thick brass, this is a high-end item that will make you feel a sense of status just by owning it. Will be wrapped in bubble wrap and shipped in simple packaging. Only those who understand used items, please consider purchasing. Material: Brass Total Length: Approximately 65mm Inner Diameter: Approximately 19mm