This is a lot of 25 Stainless Steel Ball Chain Keychains that are made of #3 size chain (3/32" or 2.4mm ball diameter) and 4.5 inches in length. They have a silver appearance and have one connector attached to each piece.T304 Stainless Steel is hypoallergenic and should not cause an allergic reaction even to the most sensitive skin.T304 Stainless Steel resists scratches and dents better than other metals.T304 Stainless Steel does not tarnish or need polishing.T304 Stainless Steel should not break with normal wear and tear.