Our commercial grade wire shelving slotted uprights can be used with both the Traditional Wire Shelves and the Quick- Adjust Shelves to create a wire shelving unit. The slots support the Quick-Adjust brackets for quickly adjusting the position of each shelf. If you build a Quick-Adjust Shelves, we recommend two Traditional shelves (top and bottom) for extra support. The post can be used with the adjustable levelers (included) or casters (sold separately). The post includes top a cap and has a 1-inch diameter. Choose between the chrome or matte black finish.