Using this Harry Potter Deathly Hallows keychain is super easy. Just attach it to your keys, backpack, or purse, and you're good to go. As for care, it's pretty low - maintenance. You can gently wipe it with a soft cloth to keep it shiny. Avoid exposing it to harsh chemicals or rough surfaces that might scratch it. When not in use, you can store it in a small box or a pouch to prevent it from getting damaged. Have fun showing off your love for Harry Potter with this cool keychain!