50pcs (25 pairs) Flat Blank Earring Posts - Earstuds - Platinum Earring Blank - Earposts backings - Earring post Ear blank (4 mm, Gold) Product : Flat post back earring ** Nickel Free Diameter : 4 mm, 6 mm Quantity : 50 pcs (25 pairs) Color : Gold, Silver Material : Stainless Steel