Using these ChiaoGoo RED Lace Circular Needles is a breeze. First, choose the right size and length for your project. Thread your yarn onto the needle, and start knitting as you normally would. The smooth surface will make the process quick and enjoyable. When it comes to maintenance, simply keep them clean and dry. After use, store them in a safe place to avoid bending or damage. Also, remember that the US 17 needles have a non - standard size, so double - check your pattern requirements. Happy knitting!