1. Colonoscopy: including Sigmoid colon, descending colon, splenic flexure, transverse colon, hepatic flexure, ascending colon, cecum and appendix.
2. Inside the colon, there are pedunculated, pedunculated, hyperplastic polyps and colon cancer for teaching and practice.
3. Applicable to various diameters of the lower digestive tract endoscopy.
4. Comes with a base, easy to fix
