Using your addi Turbo Circular Needles is easy. First, choose the right size needle for your yarn and project. Thread your yarn onto the needle, and start knitting as you normally would. The smooth nickel coating helps the yarn glide along, so you can work faster. When it comes to maintenance, keep your needles clean by wiping them with a soft cloth after each use. Avoid using abrasive materials that could damage the coating. Be aware of the non - standard sizing for some of the smaller needles. Also, since the US 36 and US 50 needle tips are plastic, handle them gently to prevent cracking or breaking. Store your needles in a safe place to keep them organized and in good condition.