ERGObrass Additional Fastener Counterpart for Trumpet (Pack of 3)

DescriptionA pack of 3 additional ERGObrass fastener counterparts to be used with your other trumpets or in many flugelhorns with piston valves (on the left side). Each pack includes a plastic fastener counterpart, a hex key wrench for the nut and one additional Nyloc screw. These counterparts can be attached to or removed from your trumpets and (most) flugelhorns very easily and quickly by opening just one screw.