Crafted with precision, this professional mechanical shaft is designed for traditional Chinese string instrument like the erhu. Made from durable copper, it ensures smooth tuning and performance. Its elegant design complements the instrument's aesthetic while enhancing functionality for musicians seeking accuracy. Features -Color:Golden -Material:Metal -Size:6.00X2.20X1.90cm/2.36X0.86X0.75in -Precision shaft design: crafted with metal, this shaft ensures stable tuning accuracy, allowing for smoother and more consistent musical performance -Durable mechanical structure: the mechanical design minimizes wear during tuning, extending the lifespan of the product for longterm use -Effortless replacement and pairing: designed for easy installation and pairing, this product meets the needs of both daily practice and live performances -Enhanced knob feel: the ergonomic knob design provides a comfortable grip, making string tension adjustments quick and efficient -Wide compatibility: suitable for various erhu models, this versatile accessory is ideal for string instrument enthusiasts seeking performance Package list: 1 pair x string shaft