Using these Jimmy's SmartStix Double Pointed Needles is a breeze. Start by choosing the right yarn for your project. Then, simply cast on your stitches as you normally would. The color - coded markings at one - inch intervals are super handy. When you need to measure your work, just use the markings on the needles. You can also use them to check your gauge and wraps per inch. As for care, keep these needles away from sharp objects that could scratch the aluminum. After use, wipe them with a dry cloth to keep them clean. Store them in a safe place to avoid bending or breaking. With proper use and care, these needles will serve you well for many knitting projects.