Cherry red hoop earrings in a large size & bold style known as the Bettie Hoop.
It starts as a tiny dot in the ear and grows into a wide hoop, 20mm at the widest, and then narrows back out toward the end. Measures about 1.5" or 36mm in diameter.
Earrings are made with vintage lucite parts that were made in Rhode Island in the 1960's - early 80's by Best Plastics. Surgical steel earring posts and they have sturdy surgical steel/acrylic backings on them as well.