Using these KnitPro Mindful Fixed Circular Needles is easy. Just thread your yarn through the cable and start knitting as you normally would. The marked cables can help you measure your work. When working on lace projects, the lace tips allow for more precise stitches. For everyday knitting, they'll make the process smooth. As for maintenance, keep them in a dry place to avoid rusting the stainless - steel parts. If they get dirty, you can gently wipe them with a soft cloth. And don't worry about the cables getting kinked, but try not to bend them too forcefully. Enjoy your knitting with these great needles!