Using these KnitPro circular needles is a breeze. Just pick up your yarn and start knitting as you normally would. They're great for both delicate lace projects and everyday knitting. When using, pay attention to the markings on the cable to keep track of your work easily. As for maintenance, keep them clean and dry. You can wipe them gently with a soft cloth. Avoid bending the cables too forcefully to maintain their smoothness. Also, since they come in eco - friendly packaging, you can feel good about being kind to the environment while you create your knitting masterpieces.