The Gathering Foot #16 is designed for gathering lightweight to medium-weight fabrics automatically while sewing. Its innovative design includes a special indentation in the sole, allowing you to sew gathered fabric directly onto a flat piece in a single operation. To do this, simply slip the flat material into the indentation, ensuring it remains un-gathered while the other fabric is gathered. Gathering Foot #16 comes in two widths, with the wider version accommodating sewing machines with a stitch width of up to 9 mm, making it a versatile tool for various sewing projects.