Edsal CBD1836 Industrial Gray Heavy Duty Steel Modular Workspace Storage System Cabinet Dolly, 1000lbs Capacity, 36" Width x 4" Height x 18" Depth Storage cabinet dolly can be used to turn an Edsal CB721836 modular workspace storage system cabinet (sold separately) from a stationary cabinet into a mobile cabinet Made of steel, which is stronger than aluminum and more resistant to fractures than cast iron Black powder-coated finish resists scratches, chipping, fading, and other wear Caster wheels swivel for maneuverability; brakes keep dolly from rolling Has a load capacity of 1,000 lb.; measures 4 x 36 x 18 inches (H x W x D)