This Nexel shelving is coated with NEXGard, an antimicrobial agent that protects against the build up of bacteria, mold, and mildew that can deteriorate the storage. NSF approved and designed to handle extreme environments, the metallic blue wire shelves featured here are perfect for dry, wet, cooler, and freezer storage. And to guarantee exceptional durability, Nexelon Wire Shelving comes with a limited lifetime warranty against rust formation.