Cabinet constructed from .090 aluminum. Louvers with screens on top of each side for ventilation. Perforations at bottom center of outside with cover and fan mount. 3-point stainless steel latching mechanism will accept padlock on each door. Stainless steel hinges. Ground lug provided in cabinet bottom, (standard). Four 0.50/0.75 and two 01.125 knockouts provided in cabinet bottom.