Using these ChiaoGoo double pointed needles is easy. First, choose the yarn you like and start knitting from one end of the needle. The smooth tips make it a breeze to insert the needle into the stitches and move the yarn along. When you're done knitting, don't expose the needles to harsh chemicals as this could damage the satin - sheen finish. To clean them, simply wipe with a soft, dry cloth. Keep them in a dry place to prevent rusting. And remember, since they're recyclable, you can dispose of them responsibly when they're no longer usable.