Backun Bore Oil is enriched almond oil that protects and hydrates your wooden instrument and accessories. Add six drops to the middle of a clean swab, rubbing the swab in your hands to saturate the cloth. Then pull the swab through an assembled clarinet (no mouthpiece!) six times. We recommend you do this with the changing of the seasons. Don't forget to wash the swab after each oiling. Backun Bore Oil comes in a 1 Fl. Oz. bottle that will last many uses.