These necklaces are made with used, spent silver bullet shells that have I have found at the gun range. They have been polished, holes drilled and a bullet tip attached. The ladies necklace is made with a 9mm luger bullet shell and comes with an 18 inch stainless steel ball chain. The larger guys necklaces is made with a 45 calibur bullet shell and comes with a 20 inch stainless steel ball chain. Great his and hers bullet necklaces!!