European Charm Snake Chain Necklaces with Ball Loster Clasp Silver Tone 24" Quantity: 24" Material: Copper Size: Approx:61cm(24") long Hole size: / Thickness: 3mm( 1/8")/Lobster Clasp:12mm x 7mm( 4/8" x 2/8");The Size Of Ball:10mm x 6mm( 3/8" x 2/8"). 1:This chain contains extension chain. 2:The end of extension chain can be screwed off,and all beads' hole size larger than 3.0mm can pass through this chain. European Charm Snake Chain Necklace With Lobster Clasp Silver Plated