Thank you for viewing. Here are the details for the Yamaha foot pedal parts: Part No. U0623830, Kana Name: FP Spring Adjustment Nut FP720 This is an item purchased in the 1990s and stored for many years. Unlike the reproduction parts, the length is slightly taller, and the surface is chrome-plated with a mirror finish, made in Japan. Compatible models include the 700 and 800 series, such as 720, 720S, 810, and 820. Regarding the condition of the product, it is unused, dead stock, and has already been discontinued. It is currently difficult to obtain a new one, making it very rare. Thank you.