The Janome Pintucking Cord Guides (for Easy Set Bobbins) are designed to help you easily create corded pintucks as you sew. The cord guides replace the clear plastic bobbin cover and feed perle cotton or other cords through the machine. The set includes two guides: one for cords up to 1.5mm in diameter and another for cords ranging from 1.5mm to 2.5mm, making it versatile for different cord sizes. This tool simplifies the process of adding beautiful corded details to your projects.