A cross between a mini hoop and studs, the Meredith earrings are the ones you can leave in and forget about. Of course, we would never recommend that you do such a thing - you know, because of properly caring for your jewelry and all that.
They measure just over .5" long and .5" wide with a hammer texture in the center. Note: take care not to over bend when putting them in and taking them out. Just a gentle open and shut and you're in business.
approx 0.5" long by 0.5" wide on 20ga wire; hammered texture on center of hoop.