The 8.5" Adson Suction Tube, 12Fr is a specialized surgical instrument used primarily in otologic and microsurgical procedures. With an 8.5-inch length, it offers the right amount of reach and precision needed for accessing small, confined areas such as the middle ear or ear canal during surgery. The 12Fr refers to the French gauge size of the suction tube, indicating a larger diameter than smaller gauges like 10Fr.