Dunnage Rack, mobile, 48"W x 18"D (2) swivel & swivel/brake casters, 800 lb capacity, non-marking polyurethane tread, 1" square tubing, removable mat 5/16"D wire, designed only for 5HP & 5HPB casters, comes assembled with the special posts, green Metroseal 3™ epoxy-coated corrosion-resistant finish with Microban® antimicrobial protection, NSF