Using these ChiaoGoo Knit RED Circular Needles is easy. First, choose the right size and length for your project. Thread your yarn through the cable and start knitting as you normally would. The smooth surface helps the yarn move freely, making your knitting process faster. When you're done, avoid bending the needles too much to prevent damage. To clean them, simply wipe with a soft, dry cloth. Store them in a dry place to keep them in good condition. If you drop them, check for any signs of bending or damage before using them again. Enjoy your knitting with these great needles!