The anti-reflux metal esophageal stent provides a solution for treating different types of malignant strictures located in the lower portion of the esophagus. It is available in three sizes: 9, 12, and 16 centimeters, catering to individual patient needs. The stent's unique design incorporates an internal valve mechanism that effectively prevents the backflow of stomach contents, specifically gastric reflux, reducing the associated symptoms and improving patient outcomes.