Yamaha Euphonium Valve Springs Set of 4 Used (Used for about a month. No noticeable scratches or distortion) [Manufacturer's Description] Compared to the original springs, while maintaining the same feel when pressed, the instantaneous return and reduction of vertical spring wobble after full return make it possible to achieve accurate valve hole positioning. In addition, the high-durability coating on the upper and lower ends of the spring prevents the springs from hitting each other, preventing unwanted noise, and the shape is designed to minimize contact between the springs. SUS304WPB, a common spring material, is used. Secret durability-enhancing treatments are applied in several processes. Changing the spring material also changes the playing characteristics. ・Easier to hit high notes ・Increased resonance (richness) in the mid to low range ・Reduced stress on piston operation (Reference) Manufacturer's suggested retail price: ¥6,600 (tax included, new)