Lister Urethral Bougie Set of 12 (11inch) Round Sprocket Frame The 155mm size is the

The 155mm size is the length of the handle

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The forceps are long and slender

Lister Urethral Bougie Set of 12 (11inch) Round Sprocket Frame The 155mm size is theA Lister Urethral Bougie Set of 12 (11 inch) is a specialized medical instrument used in the urological field of surgery. It is used to help guide a catheter or other instrument through the urethra during a procedure. The set includes twelve bougies of 11 inches in length, which can be used to measure the size of the urethra and ensure the catheter is inserted correctly.