The Handi Feet Couching Kit includes three sizes of interchangeable couching feet: 1.5mm (blue), 2mm (pink), and 3mm (yellow). You?ll have just the right size foot for adding couched embellishments using a variety of specialty threads, fibers, and yarns to your quilt. *NOTE: To use the Handi Feet Couching Kit the machine must have been purchased after November 2014 or you first need to install the Handi Feet Conversion Kit.