The Janome Pintucking Cord Guides (for Rectangular Bobbin Covers) are designed to simplify the creation of corded pintucks while sewing. The cord guide attaches in place of the clear plastic bobbin cover, allowing you to feed perle cotton or other cords through your machine with ease. The set includes two guides: one for cords up to 1.5mm in diameter and another for cords between 1.5mm and 2.5mm, offering versatility for various cord sizes. This accessory makes it easier to add beautiful, textured details to your projects.