Using these Addi Turbo circular needles is a breeze. Simply thread your yarn through the cord and start knitting as you normally would. The smooth nickel coating helps the yarn glide easily, so you can work faster. When it comes to the non - standard sizing, double - check the actual size on the label to make sure it's right for your project. After use, keep your needles clean by wiping them with a soft cloth. Avoid using harsh chemicals as they may damage the nickel coating. Store the needles in a dry place to prevent rust or damage to the plastic tips.