Using these addi Turbo Circular Needles is a breeze. Just thread your yarn through the needle and start knitting as you normally would. The nickel coating helps the yarn move smoothly, so you can work faster. When you're done with your project, gently remove the yarn from the needles. To keep them in good condition, store them in a dry place away from sharp objects that could scratch the coating. Remember, some of the smaller sizes have non - standard US sizing, so double - check before you start your project. And since the US 36 and US 50 needle tips are plastic, handle them with a bit of care to avoid breakage.