Using addi Turbo Circular Needles is easy. Just thread your yarn through the needle and start knitting as you normally would. The nickel coating allows the yarn to move freely, so you can work quickly and smoothly. When using, be aware of the non - standard sizing of some smaller needles as described. To maintain your needles, keep them in a dry place. Avoid dropping them on hard surfaces to prevent damage to the tips and cords. If the needles get dirty, you can gently wipe them with a soft cloth. Enjoy your knitting with these amazing needles!