I'm racking my brain to figure out how to use the chain AND attach to my ear wire. I thought I was going to have to transition with another jump ring, however I thought that would ruin the integrity of the earrings.
I realized that the little oval chain need to have a round link on the end. I found my smallest round nose pliers and slid the last link of the chain onto it. And since this is a fine chain, I used my thumbnail to slide it down and round out the link.