Shelves on both sides for more capacity. Slanted shelves keep books in place. Steel construction holds up to heavy use. Powder paint finish resists chipping and scratches. Two shelves on each side. 13" clearance. Features stylish perforated end panels and rounded handles. 5" casters with black shackle. Sound damping material on shelves reduce vibration on empty shelves for a quiet ride. Color: Raven Black; Capacity (Weight): 500 lbs.; Caster/Glide/Wheel: Four 4" Twin-Wheel Plastic Casters (2 Locking).