Yamaha OEM valve springs, set of 3. Very common trumpet spring. Fits alto horns, cornets, some flugelhorns (not for YFH-631/731/635), mellophones, marching French horns, & trumpets. Yamaha A0141070, D9mm x L39mm. Fits many. Contact me if you wish to verify your model's fit or you need parts for another horn.
