Black stainless steel handles. Lid hangers for lid storage while in use. Molded stacking ribs and coupling catches to secure cases when stacked. 19'' (48 cm) wide, 33'' (83 cm) deep fixed square hole frame for universal equipment fit. Sealed gasket and PRV keeps container watertight and eliminates over pressurization. 4 removable 3.5'' (8.9 cm) heavy duty bottom casters. Choice of SAE 10-32 or Metric M6 clip nuts. REACH and RoHs compliant.