These state-of-the-art 40cm. Fine Circular Bamboo Knitting Needles from leading knitting manufacturer, Addi are crafted from the finest slow-grown bamboo. Lightweight and extra smooth, these circular knitting needles promote a superior knitting experience that you will relish. Available in size 2.5mm-9mm. Please note that the options given represent the length from needle tip to tip and not the cable itself.