These wings are all a uniform 4" in length, tip to tip. They look like Monarch wings, but I'm a fan of taking something perfectly straightforward and making it into something fantastical. I would love to see a florescent butterfly. This pair is more of a lime green/yellow which can be seen in the alternate image. There is nothing formal about these, and I'm almost sure that you wouldn't want to go to a royal reception in them. Except, perhaps, in Alice in Wonderland's world.
Findings are all either gold or silver plated. I'm not sure yet why I didn't put some of these on hoops, but yes! Your pair of wings can be on hoops!