with advantage of versatility, unique texture, variety of colors, durability and flexibility,metal hollow beads are a new style Product description Metal ball chain can apply for window treatment, dividers, wall & ceiling, visual merchandising, exterior cladding and so on.Metal ball chain has the specification of below: Model Materialdiameter SQ4Nickled Black Alloy4mmSN8Nickled Alloy8mmST3Brass ...