9mm Imitation Pearl Stud Screwback Earrings Get a classic look without pierced ears with Tamika's 9mm Simulated Pearl Stud Screwback Earrings. The screwback post is easy to attach to the ear for a secure non-pierced look. The brass base, Silver plated earrings feature shiny Simulated Pearls. Enjoy a classic earring without having pierced ears with this fabulous pair!