Using your Hiplok Original bike lock is easy. First, adjust the patented fastening to fit your waist comfortably. You can wear it around your waist even when not locking your bike, no bag or bracket needed. When you want to lock your bike, use the 8mm hardened steel chain and 12mm hardened steel shackle to secure it. Keep the three keys in a safe place. For maintenance, you can wash the hard - wearing sleeve regularly. Avoid exposing the lock to extreme temperatures or harsh chemicals. If you notice any damage, don't use the lock and contact the manufacturer.