2'' Front Lid, 5'' Rear Lid. Lid hangers for lid storage while in use. Anti-reflective black hardware. Coupling catches for secure stacking. Sealed gasket and PRV keeps container watertight and eliminates over pressurization. Choice of SAE 10-32 or Metric M6 clip nuts for even more flexibility in mounting equipment. Comfort Grip plastic handles. Molded in rear edge casters with handles on the lid for ease of movement. REACH and RoHs compliant.