OEM King K12 marching trumpet valve tune up kit. 3 each valve springs, stem felts, top cap washers, valve guides & 2 spit valve corks.
Fits K12 King Bb Marching Trumpet.
Will also fit:
1BSP Conn Bb Trumpet Professional
1B50CSP Conn C Trumpet Professional
1FR Conn Flugelhorn Professional
1FRSP Conn Flugelhorn Professional
1B50C Conn C Trumpet Professional
1B - Lacquer Conn Bb Trumpet Professional
