These cables are designed to be used with Ginger Interchangeable Knitting Needles, but are compatible with all KnitPro interchangeable items. Flexible, thin cables that are best in their category with almost no memorySmooth cable joins enable stitches to slide around needles effortlesslyLong threaded joins to ensure that cable and needles stay connectedTightening hole provided in the join for that extra tighteningSpecially designed tightening key that facilitates effortless tighteningCable caps that fit on to the cable joins to keep the knitting safe The final cable length is achieved when needle tips and cable are joined together Circular Needle Length Required(as selected above) Approx Actual Cable Length(makes circular needle length when tips added) 40cm** 20cm** 50cm 28cm 60cm 35cm 80cm 56cm 100cm 76cm 120cm 94cm 150cm 126cm For optimal use with a 40cm cable, we recommend pairing it with the short KnitPro needle tips. Using standard-length tips will extend the total length to approximately 46cm, which may restrict the angle between the tips and make knitting more difficult. Available in 40, 50, 60, 80, 100, 120 and 150cm lengths