Using these addi Turbo Circular Needles is a piece of cake. Just thread your yarn onto the needle and start knitting as you normally would. The smooth nickel coating will help the yarn move easily along the needle. When it comes to care, you can gently wipe the needles with a soft cloth to keep them clean. Avoid using harsh chemicals as they might damage the coating. Remember, some of the smaller sizes have non - standard US sizing, so double - check the size you need before starting your project. And be a bit more careful with the US 36 and US 50 plastic needle tips as they're not as tough as metal ones.