Using this Caterpy hair tie/bracelet is a breeze. If you want to use it as a hair tie, simply wrap it around your hair a few times until it holds firmly. To use it as a bracelet, just put it on your wrist. As for the actual colors you receive, they may be different from what you see on the screen, so don't be surprised. When it comes to maintenance, since there are no adhesives or metal parts that can rust or wear out easily, you can just keep it clean with a dry cloth. Try to avoid getting it wet for a long time to maintain its quality. Enjoy the versatility of this product and have fun styling your hair or accessorizing your wrist!