Description

Replacement valve button YBB-621S/321S/YSH411S/YEB631S/YCB621S/YFB822S/YCB822S for the Yamaha tuba. Original Yamaha OEM part.  In a pinch, this will fit any Yamaha after 1985 If you are putting it on a YBB201, the originals didn't have an inlay, but again, it will work just fine.