Features: 1) Ball chains 2) Sizes: 1.6mm - 12.0mm 3) Material can be iron, stainless steel, and brass 4) Surface finish: nickel plated, gold plated, silver plated, antique bronze plated and color plated Usage: 1) Used for fine jewelry 2) Commonly used for jewelry applications such as neck chains bracelets 3) Can be seen attached to dog tags, used for ID badges, etc 4) Can be seen in toilets, light/ceiling fan pulls, vertical blinds, retaining application, keychain and more (can also be seen to attach rug samples together)