These ball chains are made of plated brass and are higher quality than other nickel-plated chains found elsewhere. Each necklace comes with a connector. Perfect for dog tags, bottle cap pendant necklaces, scrabble tile pendant necklaces, and many other uses! These Crafting Mania LLC chains are top-quality and exclusively licensed by Crafting Mania LLC for sale on Amazon. Don t get burned by cheap, low-quality imitators. Don t forget the matching Crafting Mania LLC pendant trays and glass cabochons for beautiful pendant necklaces, also available from Crafting Mania LLC here on Amazon.