Preparation for thread-traction using a sheath of polypectomy snare (part 2). The sheath of the snare is cut at about 60 cm with scissors (a). The polypectomy snare holding the thread is gradually retrieved, and the thread completely passes through the sheath of the snare (b and c). The sheath of the snare is positioned close to the clip (c). The endoscope and the sheath containing the thread are simultaneously inserted into the stomach (d).