24" Shelves Adjustable Mobile Stand up Workstation (Black Shelves/Silver Frame) This innovative standing desk promotes better posture, reduced back and neck pain, a thinner waist line and increased productivity. Overall dimensions: 24" W x 28.8" D x 34.1"46.1" H. Weight Capacity: 154 lbs, evenly distributed. Height of lower and upper shelves adjust together at 1" increments Durable steel frame with silver gray powder coat paint finish and black shelves Easy to maneuver with four 3" furniture-grade casters with two locking brakes Includes all hardware and tools required for assembly. This product meets the minimum requirements of ANSI/BIFMA standards.