Using these ChiaoGoo Knit RED Circular Needles is easy. Just thread your yarn onto the needle and start knitting as you normally would. The smooth red nylon coating on the cable helps the yarn slide smoothly, so your knitting process will be more efficient. When it comes to care, avoid using abrasive cleaners that could damage the nylon coating. You can simply wipe the needles with a soft, dry cloth after each use to keep them clean. Also, store them in a dry place to prevent rusting. If you're working on a large project, make sure to handle the cable gently to avoid any kinks. With proper use and care, these needles will serve you well for many knitting projects.