Using these ChiaoGoo Knit RED Circular Needles is easy. First, pick 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 quicker. When you're done, gently remove the finished piece from the needles. To keep them in good condition, avoid bending the needles or pulling the cable too hard. You can clean them with a soft, dry cloth. Store them in a cool, dry place, and keep them away from sharp objects that could scratch the smooth surface. With proper care, these needles will serve you well for many knitting projects.