Using your addi Turbo Circular Needles is easy. Just thread your yarn through the needle and start knitting as you normally would. The smooth nickel coating will make the yarn glide easily, so you can work faster. When it comes to maintenance, keep the needles clean by wiping them gently with a soft cloth after each use. Store them in a dry place to prevent rust. Be aware that some of the smaller needle sizes have non - standard US sizing, so double - check the actual size if needed. Also, since the US 36 and US 50 needle tips are plastic, handle them with care to avoid breakage.