Features: Vibrant Design: Works with all ventilated shelving, protects shelf vinyl coating, locks shelving in place, exclusive locking tab prevents injury & property damage, shelf cannot be pushed up & unlocked. Reliable Quality: Use for shelves and hanger bar supports, a double-slot design ensures strength and adjustability for secure brackets at just the right shelf height. Specifications: Material: steel Color: White Size: approximately 20 inches/50.8 cm Package includes: 6 X locking shelf brackets Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.