Using your ChiaoGoo RED Lace Circular Needles is a breeze. Just start by casting on your yarn onto the needles as you normally would. The smooth surface helps the yarn move easily, making the knitting process quicker. When working on your project, the different lengths allow you to choose what's most comfortable for you. For small, detailed projects, a shorter length might be better, while larger projects benefit from longer needles. As for maintenance, keep them clean by wiping them gently with a soft cloth after each use. Avoid using harsh chemicals as they can damage the red nylon coating. Also, store them in a dry place to prevent rusting. Remember, the US 17 needles have a non - standard size, so double - check your pattern requirements before using them.