Using your addi Turbo Circular Needles is easy. Just thread your yarn through the cord and start knitting as you normally would. The smooth nickel coating helps the yarn glide, so you can work quickly. When you're done, be careful with the snag - free joins and don't pull too hard on the cords. For maintenance, you can wipe the needles with a soft, dry cloth to keep them clean. Remember, some of the smaller needle 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 gently to avoid breakage.