Pre-order the MSTR LINX Titanium Carabiner Key Ring Set
MSTRMND Collective has an upcoming product called the MSTR LINX titanium carabiner key ring set that has a clever quick-release mechanism for swapping sets of keys with ease. The rings are machined from a solid plate of Grade 5 Titanium, and they each have a special notch that allows them to pass through one another when positioned perpendicularly.
This video shows how it works:
That key-swapping action takes some precision to get right, so you don’t have to worry about the rings coming undone in your pocket or from your belt loop. The 6-piece set comes with one carabiner (which doubles as a bottle opener with the “gate” pushed in), two MINI LINX rings, and three key rings.