Endoscopic Disposable Endoscopic Cutter Stapler and Cartridge · Applied to the tissue transection, resection and anastomosis in thoracic surgery, abdominal surgery and gynecologic endoscopy. Manual return knob: It is required when the blade doesn't reposition automaticly. Indication of 3 step firing Product Code A unique slot design in the front, which is convenient for the target organization. Four kinds of carteridge: white, blue, gold and green, suitable for different thickness of tissue. Cartridge Product Code Color W White B Blue