Sklar 85-2521 Guyon Urethral Dilating Sound - 21 French, without Thread
Sklar's® Guyon Urethral Sound is used to increase the inner diameter of the urethra to locate obstructions or for dilation prior to endoscopic procedures. The instrument has a straight shaft with a large curve leading into the tip. This instrument has a 21 French (7.5mm) tip.