I’ve always hated traditional key rings. They’re annoying as hell, especially if you don’t have nails.
FreeKey is about as simple a solution as it gets. It makes use of a small bump placed in one of the rings. This bump creates a button-like gap that can be pressed to open the key ring up. Why it took so long to reinvent the key ring, we’ll never know. We can only ask “why didn’t I think of that?”
The rings are made of sand blasted stainless steel, and 3 smaller group rings are included for even more convenience.