Using these addi Turbo Circular Needles is easy. Just thread your yarn onto the needle and start knitting as you normally would. The smooth nickel coating helps the yarn glide, so you can work faster. When it comes to the sizing, double - check the actual size as some smaller needles don't follow standard US sizing. After use, gently wipe the needles with a soft cloth to keep them clean. Avoid using harsh chemicals as they might damage the coating. Store the needles in a dry place to prevent rusting, especially for the metal parts. And be careful with the plastic tips of the US 36 and US 50 needles to avoid cracking them.