Spring Damper & Valve Guide Combo Pack- Besson Sovereign Euphonium

A combo pack considsting of 8 black rubber spring dampers and 4 x valve guides to fit Besson Sovereign Euphonium

Will also fit York Instruments

NB: The valve guides are manufactured to fit the largest bore of valve so some instruments, depending on the year and place of manufacture may require a little attention with a file for a perfect fit