Amanaote Gun Black 2 mm Diameter Ball Chain 120 mm Length Metal Bead Chain for Pendant Pack of 30 Approximately 120 mm in Length 2mm Ball. 1 inch=25.4 mm These are perfect for making your own key chains Adjustable in length - simply cut between the balls with scissors to fit to your desired length Perfect for dog tags, bottle cap pendant necklaces, scrabble tile pendant necklaces, and many other use