The octave vent remover makes it possible to remove the octave vent key when it needs cleaning out. The non-adjustable model fits most oboes. The adjustable models can adjust to fit any oboe.
Non-adjustable Octave Vent Remover - $37.87
Adjustable Octave Vent Remover with Plastic Handle - $118.11
Adjustable Octave Vent Remover with Wood Handle - $126.91