Using these ChiaoGoo Knit RED Circular Needles is easy. Just pick the right size and length for your project, thread your yarn, and start knitting. When you're done, don't bend the needles too much as they're made of stainless steel and can break if over - stressed. To clean them, simply wipe with a soft, dry cloth. Store them in a safe place, like a knitting case, to avoid any damage. With proper care, these needles will serve you well for many knitting projects.