The way locks are presently unlocked today are: Locks with a key, combination of numbers, sequence of push buttons etc, etc. The access to lthe lock unlocked was time consuming especially in an emergency. It would be profoundly safer to user to have visual sighting of the key at all time to access the lock more swiftly and to know that when the user returns key to the visual location it is locked with great assurance and security. User can then communicate this highly secure condition as to what was locked to anyone of necessary authority. To have a key always visible to the user the user knows at all times, for example, the firearm is locked, his ATM card is unavailable to anyone else. In short, a persons key which accesses their valuables is in plain sight as it is worn on their finger as any other ring.
To locate your keys in a purse, pocket or any other place takes a longer time than is necessary especially if one is getting into their vehicle in a dark parking lot etc. etc. Keys have very poor access speed (time) as you must remember where you left them and of course you must be prompt to put the key in the lock when stalked in a dangerous area. Also remembering the sequence of numbers is a greater risk than a key on a ring that one may carry.
Ring Key solves all the problems of other types of keys and locks by having the Ring Key made to open one's door, lock ones firearm, unlock one's auto lock, one's safe and even use the Ring Key to access an ATM by and or, both magnetic media, lasered media, permanent or re-writable data encripted for entry identification, authorization, and the use of certain ‘strategic systems’ that are vital to our contries defenses in many ways.