Chrome Wire Shelving Doll Base Enclosure Cart are an effective way to keep contents from moving or falling off during transportation. The rods and tabs are adaptable to any shelf position and act as a perimeter to retain product. Dolly Base allows for heavier load transport. Units consist of 4 - posts, 4 - Wire shelves, 4, 5 or 6 - rods & tabs kits, 1 - dolly base, 4 - plate casters (2 rigid and 2 swivel with brake)