Sew Steady CLEAR Table Extension for WHITE Singer Featherweight 221K7 (Table extension ONLY) attachments this was an ingenious way AL715209 this was an ingenious way for sewists to quickly cut bias strips with the perfect measurement for use with their Singer Binder Attachment You will also need an Embroidery Attachment and Feed Cover Plate (or have a machine that can lower the feed dogs) to use the Stocking Darner as photographed Superior quality acrylic Having a larger surface area helps keep the quilt you are piecing or the project you are sewing more level with the needle so that it doesn't pull or bunch up unnecessarily an ideal extension to your Featherweight sewing machine bed