JewelrieShop High Polished Stainless Steel Reversible Double Round Front Back Fireball Disco Ball Screw Stud Earrings Assorted Pairs of Earrings as Pictured Will be Included. (There may be some color difference) Interchangeable Earring Set, Great Combination High Quality Stainless Steel, Nickel-free & lead-free, Hypoallergenic Ball Size: 5mm and 8mm, Pin Thickness: 1.16mm (17 Gauge) Quantity: 2 Pairs / Order, Free with Nice Package