Metro Super Erecta Shelving is the ideal wire shelving solution. Coated with Microban anti-bacterial coating to meet the highest hygiene and corrosion resistant, Metro offer some of the safest shelving systems on the market. Metro Super Erecta Mobile 4 Tier unit as a set, or 4 Tier Add-On Shelving Kits are available. See available configurations for the Mobile 4 tier below.