The Bernina Roller Foot # 51 Roller foot # 51 is expert at sewing on difficult materials. The three rollers on its sole enable it to glide effortlessly over “sticky” textiles such as leather and vinyl, as well as fabrics with a rough surface texture. Fabric feed proceeds without a hitch, producing a neat, even stitch pattern. This makes Roller foot # 51 ideal for the decorative topstitching of leather, as well as the construction and repair of bags, raincoats and other garments or home furnishings