Using these Jimmy's SmartStix Double Pointed Needles is easy. Start your knitting project as you normally would with double - pointed needles. The color - coded intervals on the needles are super handy. Whenever you need to measure your work, just use the markings right on the needle. You can also use them to check your gauge and see how many wraps you have per inch. When you're done knitting, simply remove your project from the needles. To keep them in good condition, store them in a dry place away from sharp objects that could scratch the aluminum. Avoid bending the needles as it might affect their performance. If they get dirty, you can wipe them gently with a dry cloth.