Fast, easy assembly—split sleeve device locks shelves in place in 1" increments along post height—no bolts required. Provides easy loading/unloading from all sides. Ideal for healthcare, food service and other institutions where cleanliness is a must. Items slide on and off easily on surface ribs that run front to back. Allows air to circulate—reduces dust, moisture build-up, permits maximum sprinkler system efficiency. 4 swivel casters. Price per unit.