To use these ChiaoGoo Knit RED Circular Needles, start by choosing the right size and length for your project. Slide your yarn onto the needle and begin knitting as usual. The smooth red nylon - coated cable makes it easy for the yarn to move. When not in use, store the needles in a dry place to prevent rust. Avoid bending the needles too much as they are strong but can get damaged if over - flexed. If the needles get dirty, you can gently wipe them with a soft cloth.