Using these ChiaoGoo Knit RED Circular Needles is a breeze. Just thread your yarn onto the needle and start knitting your favorite patterns. When choosing a needle, pick the size and length based on your project. For small, detailed work, go for a smaller size and shorter length. For larger projects like blankets, a bigger size and longer length will be more suitable. As for maintenance, keep them clean by wiping with a soft cloth after use. Avoid dropping them on hard surfaces to prevent damage. Store them in a dry place to avoid rusting. And always handle them gently to ensure they last a long time for all your knitting adventures.