VALYRIA 20pcs Silver Tone Stainless Steel Lobster Clasps Jewelry Findings (5/8" x 3/8") material:Stainless steel(Cadmium Free) Size:15mm x9.5mm( 5/8" x 3/8")/11mm x7mm(3/8" x 2/8") Features: durable and fadeless Hole size:2mm Thickness:4.7mm( 1/8")