Satin-finish stainless steel. Door equipped with full-length stainless steel piano-hinge at bottom; swings down for easy replacement of sharps container. Holds BD BrandSharps Collector, 5.4 Qt, part number 305443.Rough Wall Opening: 12" W x 17 3⁄8" H x 5" min. D (305 x 441 x 127mm).