The Troika key holder wasn't my first choice but it turned out to be the best choice. Compared to the other two detachable ring key holders I've tried, the Troika seems to be the most durable. Its rings are easy to put on and take off, but stay securely in place. I would have preferred a version without the large leather keychain, but I live with that as the holder's functionality is far superior to others I've tried first. I give 3 stars for fit and 5 stars for functionality. All in all four stars.
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