Using these addi Turbo Circular Needles is a piece of cake. First, pick the right size needle according to your project. Thread your yarn onto the needle, and start knitting as you normally would. The nickel coating helps the yarn slide smoothly, so you don't have to worry about it getting stuck. When it comes to maintenance, simply keep the needles clean and dry. Avoid bending the cords too harshly to keep them flexible. And remember, those smaller sizes don't follow the standard US sizing, so double - check before you start your project. Also, be gentle with the plastic needle tips of US 36 and US 50 to prevent any damage.