Mobile workbenches are built for years of service. The rugged 18 gauge 1-1/2" tubular steel frame features a double cross-bracing stringer on rear legs for added rigidity. Lower shelf provides additional storage space. 34H mobile workstations roll smooth on 5" diameter non-marring locking swivel casters. Choose between Shop Top or Plastic Laminate Bench Tops with matching lower shelf. Shop Top protects against static build up and won't warp or split. Gray Plastic Laminate Top is super-strong and easy to clean, providing a smooth, tough work surface for all applications. Available with Gray or Blue enamel finished frame. Easy assembly.