Using these ChiaoGoo Knit RED Circular Needles is a breeze. Just start your knitting project as you normally would, and enjoy how the smooth red - coated cable lets the yarn slide easily. When it comes to sizing, pick the needle size according to the type of yarn you're using and the pattern you're following. For maintenance, keep them in a dry place to prevent rusting. Avoid bending the needles too forcefully as it might damage them. And if they get dirty, you can gently wipe them with a soft cloth. That's all you need to know to make the most out of these great knitting needles!