These are parts, not complete units. If you have wire shelving on the floor and need to add a shelf level, replace a divider that got bent, or reconfigure a run for a different product mix, this is where those pieces live. Complete wire shelving units are on the wire shelving collection.
What is here breaks into three groups. Specialty shelf styles that swap onto existing posts: slanted picking shelves, basket shelves, cantilever shelves and slanted transport shelves. Organization parts that mount to a shelf you already have: dividers, stackable ledges, label holders, clear shelf inlays and enclosure panels, including an enclosure panel sized for the plastic shelving line. And structural hardware: uprights, legs, cross braces, cantilever arms, leg hook kits and corner hardware kits.
Fit is the thing to check before ordering. Parts are built around a specific shelf width, post system and adjustment spacing, so match those against the unit you are adding to rather than the product photo.