Knit-Pro Cable - Flexible thin cable with almost no memory, smooth cable joins, tightening hole provided in the join for that extra tightening, cable caps that fit on to the cable joins to keep your work safe. Designed for using with the Knit-pro Circular knitting needles and Knit-pro crochet hooks. Please note the size on the packaging is the length it would be if attached to a pair of 11.5cm knitting needles (designed for circular knitting). A Cable key should be always used to tighten the Connector to the Cable. It is very important to make the connection very tight otherwise the Connector could become loose and your work could unravel.