Stackable polymer/stainless steel ledges located on shelf perimeter provide retention of liquids, chemicals and other items being transported. Compact size makes the cart easy to maneuver and solid shelves are are designed to contain spills. Consists of two solid 18" x 36" MetroMax i shelves, top and bottom, combined with 5MPX series casters, 33" posts, and an 18" wide type 304 stainless steel handle. All MetroMax i shelf mats, shelf frames, and polymer posts feature built-in Microban product protection, which protects the product from bacteria, mold, mildew and fungi that cause odors, stains and product degradation.