Presser feet are small attachments used on sewing machines to hold fabric in place while sewing. They come in various shapes and sizes, each designed for specific tasks, such as straight stitching, zigzag stitching, or quilting. By applying pressure to the fabric, presser feet help ensure even feeding and accurate stitching. Different types of presser feet include the zigzag foot, walking foot, and buttonhole foot. Each type enhances the sewing process by providing unique functions. For example, the walking foot is ideal for sewing multiple layers of fabric, while the buttonhole foot simplifies creating buttonholes, making sewing projects easier and more efficient.