50 Stainless Steel 30 Inch Military Ball Chain Necklace 50 Stainless Steel ball chains (30 inch) Ball size 2.4mm High quality, will not rust! This is a great item to using on a lot of things,Perfect for dog tags, bottle cap pendant necklaces, scrabble tile pendant necklaces, If you are considering shorter chains, go ahead and buy the loger ones and cut them if you need to