To use these ChiaoGoo double pointed needles, simply start by casting on your yarn. The smooth tips make it easy to pick up stitches. As you knit, the lightweight nature of the needles will keep your hands from getting tired. When you're done, gently remove the finished piece from the needles. To maintain these needles, keep them dry and away from harsh chemicals. Since they're made of stainless steel, they're pretty sturdy, but don't bend them forcefully to avoid damage. And remember, they're recyclable, so when it's time to replace them, you can do so in an eco - friendly way.