HiyaHiya Interchangeable Knit Saver Cable with Lifeline Holes - 40/42" Large Knit Saver Cables with lifeline holes are a great new addition to the HiyaHiya Interchangeable line! Lifelines are a fabulous way to protect your stitches while knitting complicated lace patterns 40/42" long, fits US size 9 - 15 HiyaHiya needle tips For use in conjunction with Hiya Hiya Interchangeable needle tips