20pcs Silver Tone Stainless Steel Lobster Clasps (13mm x8mm(4/8" x 3/8")) material:Stainless steel(Cadmium Free) Size:11mm x7mm(3/8" x 2/8");Hole size:1.2mm;Thickness:3.5mm( 1/8") Size:13mm x8mm( 4/8" x 3/8");Hole size:1.6mm;Thickness:4mm( 1/8") Size:15mm x9.5mm( 5/8" x 3/8");Hole size:2mm;Thickness:4.7mm( 1/8") They are perfect for necklace and bracelet making. Use these beautiful shiny clasps for all your creative craft and jewelry making projects