This is a geeky-cool-lovr product.
It’s a binary ring with five pits going across the ring to represent 2^5, or a binary representation of the digits 0-31. That’s more than enough to represent the 26 characters of the English alphabet.
There are a series of 20 spaces around the ring for your characters. Even better, it’s made out of recycled gold or titanium. These people are very enviro-friendly.