King, Holton (T602), Cleveland Superior, older Silver Flair, and Holton Top Action Trumpet Valve Springs (set of 3).  Fits many King & Holton (T602) top action Trumpets and the 1130 Flugabone.  See ID# -- 273538532831 for the round valve guides.  Also see Item ID: 274130675840 for springs that fit INSIDE Holton T101, LT101 pistons (valves).  Email me if you have questions.