Using this bracelet is a breeze. First, wear it around your wrist like a regular bracelet. If you need extra cordage, simply unfasten it and unravel the 3.4 - meter paracord. When you need to cut the cord, use the built - in blade. To start a fire, strike the blade against the ferro rod in the clasp. And if you're in an emergency, just blow the whistle integrated in the clip. As for maintenance, keep it dry. Avoid using the blade on extremely hard surfaces to prevent it from dulling. If it gets dirty, you can gently clean it with a damp cloth. Also, check the clasp regularly to make sure it's still secure.