The 5 1/2 Martini Bone Curette, round with a 2.5x3mm double-ended design, is a specialized surgical instrument used for scraping, debriding, and removing bone or tissue during orthopedic procedures. The round tips of the curette allow for smooth and controlled tissue removal, particularly in curved or concave areas. The 2.5x3mm size refers to the dimensions of the blade, offering precision for smaller bone work.