The BERNINA Patchwork Foot #97D is designed for straight-stitching and is ideal for sewing ” or ” seam allowances and top stitching. It is available for BERNINA machines that have a maximum stitch width of 9mm. The foot print of the sole fits perfectly with the feeding system for the most accurate feeding and stitching when piecing patchwork blocks on a 9mm BERNINA machine. Main Features For patchwork projects with seam allowances of 3 mm (18), 6 mm () and 7.5 mm (1/3) Three notches on the side for precise guidance For 9 mm machines with BERNINA Dual Feed system