Yamaha vintage hi-hat stand YD500, from the 700 series era, likely from the 1970s. I believe it's a high-grade stand. Part number unknown. Pedal tension adjustable. Disassembled, overhauled, rod spring cleaned and lubricated. Smooth operation. The rods have some chrome clouding, etc. It seems that Yamaha-made replacements can be used. I enjoy disassembling and maintaining vintage items. Considering its age, the storage condition is good, but it's a vintage used item, so please consider that before purchasing. No returns or exchanges after purchase!