Knitter's Pride cords for any of their interchangeable sets. The cables are black or coloured.
The size indicates the length of the circular needle you will have after you attach standard length tips. Please note that cords for 16 inches and 20 inches will only work for knitting in the round with the shorter needle tips, just like with the fixed circular needles. With longer tips you will not be able to close the circle to knit.
