Heavy-Duty Utility Cart - 4520-89, 2 Tiers, 25-7/8" x 33-1/4" x 45-1/4", 500 lbs. CapacitySturdy structural foam construction won't rust, dent, chip or peel High density structural resin construction Flat handle design Rounded corners protect walls and furniture Lightweight and maneuverable Large 5" non marking casters Easy to reach tool accessory hooks and storage area enhances productivity and organization Easy access bottom shelf Best in class casters to meet the most demanding environments Capacity is based on evenly distributed