Brother pearls sequins foot cat a attaches threaded beads sequins or rounded cords up to 4 mm in size its wide groove also helps you to make or attach piping it is handy to attach beads or sequins to neckline etc also used for edge stitching heavy fabric such as knits 1 adjust the upper thread tension 2 place threaded beads in groove of the foot 3 stitch in place using zigzag stitch with transparent thread compatible with brother category a sewing machines