Fall in love with your new daily wear earring - the Baseball Studs Earring! These lightweight earrings are made of acrylic. And, at approximately 10mm or 15 mm, they are a great size for most ears. At Oh My Sweetie, we care about metal sensitivities so we offer a variety of hardware options for our customers including sterling silver, 14k gold plated, and bronze/nickel. This Oh My Sweetie handmade product is proudly made and shipped from the United States.