King 3rd Slide Finger Push Rod (Finger Ring) 3.8mm with Lyre Screw

King, TR01059 3rd slide push rod (finger ring) nickel with 6-32 brass lyre screw. 3.8mm square shank, smooth surface.  Customer verified for a 1955-1960 Super 20 Master Cornet.  Contact me if you wish to verify your model's fit.