The Frazier Suction Tube, Round Hole, WL 3-7/8" OAL 6-7/8" 4 French (Fr) is an ultra-fine, precision suction instrument designed for use in microsurgery, pediatric procedures, and ENT surgeries where exceptionally delicate suction is required. With a 4 Fr outer diameter (~1.35 mm), this is one of the smallest sizes available, offering minimal tissue disruption and high control in extremely narrow or sensitive surgical fields.