They are made of 100% pure titanium. It may sound great to most people having something made of 100% pure Titanium, but anyone who works with metals knows that in its pure form, Titanium isn't very useful at all. It's relatively soft and doesn't wear very good at all. Titanium alloys on the other hand have great structural properties and great wear resistance.
Any metal in pure form is pretty much worthless from a structural standpoint.
If someone would offer a titanium alloy key, I might buy one. But pure titanium isn't going to be very useful.
