50pc Silver Tone Glue On Top Drilled Bails 11x4mm Jewelry Findings Quantity: 50PC Approx:11mm x 4mm( 3/8"x 1/8") Hole size: 3mmx4mm( 1/8"x 1/8") Thickness: 4mm( 1/8") 0.2mm Material: Copper(Cadmium Safe)