The merchant unloaded it. Elbow is the leg meat of pig, which is divided into front elbows, also called front hooves. It has thick skin, many tendons, heavy gelatin and a lot of lean meat. It is often cooked with the skin on, making it fat but not greasy. Suitable for roasting, grilling, sauce, stewing, stewing, making soup, etc. The skinned pork elbows were bought by merchants who removed them and used them for other purposes. When pig skins were more expensive than pork, merchants would separate the skins and sell them separately.