Finally, the gouged pieces of cane are soaked, shaped on a shaper with razor blades, and allowed to dry before the final steps. The shaped piece of cane is then re-soaked and tied onto a "staple" for oboe reeds or formed on a mandrel for bassoon reeds. Double reeds are tied in place with thread. Finishing both bassoon and oboe reeds requires the reed-maker to scrape along the cane section of the reed with a scraping knife to specific dimensions and lengths depending on the reed style and the musician's preference. Bassoon and oboe reeds are finished when the reeds play in tune or can make a sufficient "crow"-like noise.