Clover Stud Earrings in Silver-Tone

Clover stud earrings in silver-tone. I bought these costume earrings years ago but never ended up wearing them since I already have too many, so I’d like these to go to a good home. I’m not sure what the materials are because they didn’t come with a description and there are no markings - they’re also lightweight! Earrings each measure 5/8” x 5/8”.