Rhodium Plated, Nice Weighted Jewelry And Not Cheap Feeling Or Look. Adjustable Wrist Size Due To Locking Mechanism. 38mm Readily Available But Can Also Switch Connector To Accommodate 40mm, 42mm And 44mm But Please Comment Before Buying To Coordinate. Easily Wipe Clean With A Microfiber Cloth Or With A Dab Of Metal Cleaner. Quality Guaranteed.