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 & scratches. Two shelves on each side. 13" clearance. Features stylish perforated end panels & 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); Material(s): Steel.