Using these addi Turbo Circular Needles is a breeze. Just thread your yarn through the needle and start knitting as you normally would. The smooth nickel coating helps the yarn glide, so you can work faster. When it comes to smaller sizes, remember the non - standard sizing mentioned. Don't worry if the feel is a bit different from what you expect. For maintenance, keep the needles clean and dry. Avoid bending the cords too much to maintain their flexibility. Also, since the US 36 and US 50 tips are plastic, handle them gently to prevent scratches.