Using these addi Turbo circular needles is a piece of cake. Just thread your yarn through the needle tip and start knitting as you normally would. The smooth nickel coating helps the yarn move easily, so you can work quickly. When it comes to care, keep them away from sharp objects to avoid scratching the coating. After each use, gently wipe them with a soft cloth. Remember, some of the smaller sizes don't follow the usual US sizing, so double - check before you start your project. And be careful with the US 36 and US 50 tips as they're plastic, so don't expose them to too much heat or force.