■ Trumpet Piston Finger Buttons Valve Parts Set of 3 (Overseas Manufacturer) ★ These are new trumpet piston button accessory parts purchased from an online shop. ★ They are light-heavy type alloy round buttons (weighing approximately 23.7 grams for the set of 3). ★ There is dullness on the plating of the surface, and plating is peeling on the back and screw threads. ★ One of the 3 has slightly tight screw threads. ★ They were installed on a current model YAMAHA YTR4335GⅡ, but it is unknown whether they can be installed on other Yamaha models or other manufacturers' trumpets. ★ Image 5 shows an example of them installed on a current model Yamaha 4335GⅡ. ★ Please understand that we cannot provide warranty or refunds if the screw threads or the instrument itself are damaged due to forced installation. Please understand and take responsibility for your own actions. ★ Due to being an overseas manufacturer, there are some rough spots in the finish and molding, so please understand this before purchasing. ★ Shipped via Yu-Yu Mercari delivery service.