This enamel pin is super easy to use. You can attach it to your backpack, jacket, or any other fabric item with ease. Just push the pin through the fabric and secure it. As for the glow - in - the - dark feature, expose it to bright light for a while during the day and it'll glow at night. When it comes to maintenance, keep it away from water as much as possible to prevent rust. If it gets dirty, you can gently wipe it with a dry cloth. Don't bend the pin too much as it might break. Enjoy showing off your cool Thor pin!