Using these ChiaoGoo double pointed needles is easy. Just thread your yarn through the tapered tip and start knitting your favorite patterns. When working, make sure to keep an even tension for a neat finish. As for care, avoid using abrasive materials that could scratch the satin - sheen finish. You can simply wipe them clean with a soft cloth. Also, store them in a dry place to prevent rusting. If you're not using them for a long time, consider putting them in a protective case to avoid any damage.