External measures 8-3/4" length by 5-47/64" width by 4-7/32" height; internal measures 8-37/64" length by 5-37/64" width by 4-3/64" height. Natural finish. Made from durable ADC-12 aluminum alloy. Self-adhesive EPDM gasket easily attaches to cover. Designed to meet NEMA 1, 2, 4, 4x, 12, 13 and IP66 ratings.