This set includes 1/4" Ruler Foot and Open-Toe Frame Quilting Foot, which are designed specifically for frame quilting, the forte of the new 1600P-QC. The 1/4" Ruler Foot as a high 'heel' and ½" diameter for free-motion quilting with a ¼" thick quilt rulers and long arm quilting templates. The Open-toe Frame Quilting foot has an opening that faces sideways to provide a clear view of your work when standing at the handles of a quilt frame. This accessory will fit on Janome machines in the Category N.