These are great everyday earrings. Lamp worked glass disks made by me are mounted to sterling silver studs. My stud earrings are big sellers at my shows and recently my customers have been asking for studs in larger sizes. The backs for these earrings are made of sterling silver and they are larger in size to support your earrings so they don't tilt. The color scheme shown is inspired by the beach. It's a sandy taupe color inside, with light amber transparent, opaque sky blue, and pale emerald green transparent. It's a beautiful neutral that looks great on everyone! More color choices are listed in my shop. If you don't see one you are looking for, please ask and I will make them for you. The glass disks measure approximately .6" in diameter.