Structure and Composition: The product consists of anastomosis and nail chamber, and the components are nail chamber, closure lever, firing lever, rotary knob, joint fins, manual knife reversal switch, stroke counter indicator, knife direction indicator, anvil release knob, closure lever and anvil. The anastomosis is made of stainless steel and the anastomotic nail is made of titanium (Titanium3Al2.5V). The products are radiation sterilized.