The Cottle Speculum (10mm to 8mm Taper, 110mm Blades) is a specialized surgical instrument used in ENT (ear, nose, and throat) procedures, specifically for nasal examinations and surgeries. The 10mm to 8mm taper refers to the design of the speculum's blades, which gradually narrow from 10mm at the base to 8mm at the tip, providing precise control in retracting the nasal tissues.