The Bernina Buddy 3PCS Binder Set includes three steel binders in sizes 1-3/4", 1-1/2", and 2". Each binder features tape entrance sizes of 45mm, 38mm, and 50mm respectively, with a finish size approximately a quarter of the tape size. Designed for use with single needle industrial sewing machines, these binders fold tape in half around fabric, creating a raw finish top and bottom. They are ideal for inserting tape, braid, or binding along garment edges, as shown in the diagram. The wide, right-angle binders are compatible with most industrial and home sewing machines that have attachment mounting holes in the machine bed, including brands like Bernina, Consew, Gemsy, Juki, Mitsubishi, Rex, Singer, SunStar, Tacsew, and Yamata. Made from durable steel, these binders are suitable for various sewing projects. Technical support is available to ensure compatibility and proper use, with assistance provided upon request.