Shown are 12mm stud earrings. This is our most popular size for both adults and kids! Earring Sizes (diameter of earring face): Regular 12mm = .47" Medium 10mm = .39" Small 8mm = .31" (*We do NOT recommend 8mm earrings for designs that have a lot of writing or detail, since these are tiny images*) The setting refers to the metal part of the earring. If a specific setting color is not requested in the custom options box, we will send it as shown in the default photo. By default, our earrings come on pre-holed cards with our logo (no contact info). We recently changed our packaging, so the cards you receive may be different than what is shown in the picture. We also offer the option for earrings to come prepared for you to put onto your own cards. Message us for more info! Settings are Nickel and Lead-free. Perfect for sensitive ears! ALL items are made to order in Hitchcock, TX.