Using these KnitPro Mindful Collection needle tips is easy. First, choose the cable you like, either swivel or non - swivel. Then screw the tip onto the cable. Remember, if you want to make a 16 or 20 needle, pick the 4 tips. When not in use, keep them in a dry place to avoid rusting. Clean them gently with a soft cloth. Even though the brand has a new name and packaging, the way you use and care for them stays the same as before.