Using addi Turbo Circular Needles is a breeze. Start by choosing the right needle size for your project. Then, simply thread your yarn through the cord and begin knitting as you normally would. The smooth nickel coating will help the yarn move easily. When it comes to maintenance, keep the needles clean by wiping them with a soft cloth. Avoid using harsh chemicals as they might damage the coating. Be aware of the non - standard sizing for some smaller needles. And since the US 36 and US 50 tips are plastic, handle them gently to prevent cracking.