Using these KnitPro Mindful Collection needle tips is easy. First, choose the cable you like, either with or without a swivel. Then, screw the 5 - inch US size 13 lace needle tips onto the cable. When making a 16 or 20 needle, make sure to use the 4 tips for it to work properly. As for maintenance, keep them in a dry place to prevent rusting. And don't worry if your order arrives in a KnitPro package; it's the same great product you ordered.