Using this Kryptonite folding lock is super easy. First, unfold the lock and wrap it around the object you want to secure, like a bike frame. Then, insert the key and turn it to lock. When you're ready to unlock, just insert the key again and turn in the opposite direction. Remember to keep your keys in a safe place. As for maintenance, occasionally wipe the lock with a dry cloth to keep it clean. Avoid exposing it to extreme weather conditions for long periods as it might affect the lock's performance. If you lose your keys, you can use the Key Safe Program to get a replacement.