An Interchangeable Needle Kit is set with a range of needle sizes and cable lengths. A pair of needle tips is attached to either end of a cable, to create the most versatile type of needle there is: a circular knitting needle. You can use the needle for circular knitting, regular flat knitting, and even for small-diameter circular knitting.

Kits are a money saver from buying individual needle sizes. Most full kits come with between 7 and 10 needle tip sizes, and various cord lengths which can be combined to make virtually any size circular needle. But above all, a kit is a convenient and portable way to always have the needle size you need on hand!