Sewing machine attachments are additional tools that enhance the functionality of a sewing machine. They can help with various tasks, such as quilting, hemming, or creating buttonholes. Common attachments include the walking foot, zipper foot, and buttonhole foot, each designed for specific sewing techniques. Using these attachments can improve the quality and efficiency of sewing projects. For example, a walking foot helps feed multiple layers of fabric evenly, while a zipper foot allows for precise stitching close to the zipper. Overall, these attachments make sewing easier and more versatile for both beginners and experienced sewists.