SewFine Ultra T Foot High Performance SetThe SewFine Ultra T High Performance Presser Foot Set for Brother and Baby Lock includes three feet made of a more durable synthetic resin than typical non-stick feet. These feet are resistant to the scarring produced by a sewing machine’s feed system yet virtually reduces any friction between the presser foot and the top layer of fabric. This provides a smoother flow of the fabric while sewing greatly improving stitch quality and fabric control. Improved stitch quality and performance varies based on machine model.What's Included and Features Ultra T ¼” Quilting Foot Included in the Ultra T kit are the most popular accessories which includes an all-purpose foot, decorative stitch foot and 1/4” patchwork foot. The Ultra T ¼” Quilting Foot provides superior control while piecing. A 1/4” and 1/8” guide is clearly visible for seam guidance. Ultra T Decorative Stitch “N” Foot The Ultra T Decorative Stitch “N” Foot provides a smoother flow of fabric allowing dense satin and decorative stitches to form more consistently on all types of fabric. Why should you use Ultra T for everyday sewing? Friction between the bottom surface of a standard presser foot and the top layer of fabric cause shifting of the two layers of fabric resulting in uneven seams and puckering. How do the Ultra T Feet compare to standard non-stick feet? Standard non-stick presser feet reduce this shifting however with day-to-day use become scarred and marked by the feed dog teethe. This in turn can snag your fabric as well as effect fabric control.