A hay baler is a machine used in agriculture to compress and package cut grass or other forage into compact bales. These bales can be rectangular or round, making them easier to handle, transport, and store. The baler works by gathering the cut material, compressing it, and then binding it with twine or netting. Hay balers come in various types, including small square balers, large round balers, and inline balers, each designed for specific farming needs. They are essential for farmers who produce hay for livestock feed, ensuring that the forage is preserved and easily accessible throughout the year.