SiteSelect® posts provide a visual guide for positioning and adjusting shelves. An easy-to-identify double groove every 8.0" offers a quick way to align all shelves. Stationary posts include an adjustable leveling foot. Mobile posts come without leveling bolt assembly to accommodate stem casters. Corrosion resistant Metroseal® Gray epoxy finish features Microban® antimicrobial product protection to keep the product "cleaner between cleanings". 12-year warranty against rust and corrosion.