The Olympus A20908A is a 15.5 French blind obturator designed for use with compatible cystoscope sheaths, specifically the A20930A. Made of high-quality German stainless steel, this reusable urological instrument is part of Olympus' line of endoscopic equipment for diagnostic and treatment procedures. The obturator features a violet color code for easy size identification and is compatible with various Olympus sheaths and working elements.