I got a notification yesterday saying it had been shipped, and this morning I got a wonderful package through my letter box.

I opened it to find a Novoskins case with a hidden credit card holder for my iPhone 5s, a screen protector and a little bag containing two black rubber rings.

The bag said "They may not look exciting but they are BY FAR my most useful EDC item! Hope they make your key management less of a ballache!" - I'm stumped to what they are, I think I hook my keys onto them, I've tried Googling but had no luck, could any Redditors help me work out these mysterious black rings?

Either way, to the person who was matched to me, and took their time to get me something I absolutely love, thank you!