Back in the olden days, when I was in University, we used to have these Freshers Week club nights at which attendees could let their fellow flirters know whether they were "spoken for" or not by attaching a great big sticker to their chests. Red meant you were with someone, green meant "take me now, big boy" and amber... well, who knows what that meant.
Anyway, the point is that with this new "Singlering", the whole world can be your Freshers Week disco. Isn't that good news? By wearing this distinctive, azure coloured ring, you'll be letting other ring bearers know you're available. Each ring also comes with its own code, so that you can register online and advertise yourself some more. If, of course, you want to.
Related: White fake diamond ring | The Remember Ring | Bling Your Own Ring

Over on this side of the pond in the USA and Canada we’re not much into “advertising” or “broadcasting” that we are single. Singelringen is a status ring. It says we’re single and we’re just fine. If we happen to meet “the one” that’s great but in the meantime we’re just enjoying life. $55 USD at Scandihoovians (totally cool stores) or Singelringen.com.