Anodized Aluminum is a process used to increase the thickness of the natural oxide layer on the surface of metal parts. The process increases corrosion resistance and wear resistance, and provides better adhesion when applying the colored coatings. Anodized Aluminum Chain is a lightweight and economic alternative to precious metal chains and is available in numerous styles and many colors. Beaders can use aluminum chain with simple pendants, or they can embellish beads or charms to create truly unique necklaces, bracelets, or anklets."