This belt compatible key holder has a quick release magnetic clip that allows you to take your keys on and off with one hand. The KEYClip has a 2" loop that allows for all sized belts to be passed through it and the military style snap hook would then hold your keys. You can also wear it the other way, where you use the 2" loop to hold your keys and the military hook to snap onto belt loops or bags.
Auto Locating Magnetic Key Chain by YNOT from YNOT on Vimeo.
Magnetic Key Chain Update 2 from YNOT on Vimeo.