GentleCath tiemann/coude tip PVC urinary catheter, 12 Fr diameter, 16″ (405 mm) male catheter length. GentleCath Intermittent Urinary Catheter is designed to make catheter insertion and removal as smooth and easy as possible for the patient. The product features polished and rounded eyelets to minimize friction, color coded funnels for easy size identification, and has a soft, rounded tip that aids smooth insertion.