Using addi Turbo Circular Needles is easy. Just thread your yarn onto the needle and start knitting as you normally would. The smooth nickel coating will help the yarn move easily along the needle, making your work faster. When it comes to storage, keep them in a dry place to prevent the nickel coating from rusting. Avoid bending the cords too much to maintain their flexibility. Remember, some of the smaller needle sizes have non - standard US sizing, so double - check the actual size before starting your project. And since the US 36 and US 50 needle tips are plastic, handle them gently to avoid breakage.