Using these Jimmy's SmartStix Double Pointed Needles is a breeze. Start your knitting project as you normally would with any double - pointed needles. When you need to measure your work, just use the color - coded markings on the needles at one - inch intervals. You can easily keep track of your gauge and wraps per inch. As for care, simply wipe the aluminum needles with a dry cloth after use to keep them clean. Avoid using harsh chemicals or abrasive materials as they may damage the color - coding and the surface of the needles. Store them in a safe place to prevent bending or breaking. With proper use and care, these needles will serve you well for many knitting projects.