Buttonhole Foot with Slide #3B simplifies the process of sewing buttonholes of the same length by allowing you to set the desired length manually using the scale markings on the foot. This feature ensures that you can create perfectly identical buttonholes repeatedly until you decide to change the size. Ideal for sewing button plackets on garments and home furnishings, this presser foot provides precision and consistency, making it an essential tool for achieving professional-looking results in your sewing projects.