The black powder coated bracket is 2.41" (61.2 mm) high, 21.0" (533.4 mm) long, 2.04" (51.8 mm) wide, and 21.0" (533.4 mm) deep. It is designed to support an 18" (457.2 mm) wide Wyr-Grid® Pathway from the ceiling using a pair of 1/2" (12 mm) threaded rod drops. The hardware for attaching the bracket to a threaded rod is sold separately. The black powder coated bracket comes in standard packages of one.