Using these Jimmy's SmartStix Double Pointed Needles is a breeze. Just pick up the needles and start your knitting project as you normally would. The color - coded markings at one - inch intervals are great for quickly measuring your work. You can measure the length of your knitting or check your gauge right on the needles. When it comes to cleaning, simply wipe the needles with a soft, dry cloth to keep them in good condition. Store them in a safe place to avoid bending or damage. Also, be careful not to use excessive force while knitting, as the aluminum needles, though lightweight, can still be damaged if over - stressed.