Using these addi Turbo circular needles is easy. Simply thread your yarn through the cord and start knitting. When working on your project, enjoy the smooth glide of the yarn on the nickel - coated needles. As for the non - standard sizing, make sure to double - check the actual size against your pattern requirements. When you're done knitting, gently clean the needles with a soft cloth. Avoid using harsh chemicals that could damage the nickel coating or the plastic tips. Store them in a dry place, away from sharp objects that might scratch the needles or the cords.