These best-selling wire shelving kits come complete with everything needed to quickly create extra storage space. They are also extendable; simply purchase components from our FED modular shelving selection. We stock extra uprights, baskets, castors, shelf edges and dividers. Shelving units can be assembled in minutes. Simply snap the shelf clips in position on the uprights, then drop the shelf over the uprights onto the collars and press into place, no tools are required.