CKB Ltd Women's 100X (50 Pairs) Blank Earring Studs Posts With Stopper Flat Pad Findings Material: Stainless Steel(Cadmium Free) Size:Approx:13mm x 6mm( 4/8"x 2/8") Hole size: / Thickness: 0.7mm Quantity: 100Pcs per pack (50 Pairs)