This RAB Lighting MP19B Mighty Post is a kit that consists of a black PVC polyvinyl chloride post, cap, and stabilizer, and is suitable for mounting floodlights and lawn lights at ground level. It is 19 48.1 cm long and 2 7/8 7.3 cm wide at the base. Set screws lock the components in place, and the 1/2 threaded hole in the cap accommodates most light fixtures. This post kit is Underwriters Laboratories UL listed as suitable for use in wet locations when used with fixtures that have a ground wire. It is suitable for mounting ground level light fixtures in a wide range of outdoor settings.RAB Lighting manufactures LED, metal halide, and high pressure sodium lighting fixtures and controls for indoor and outdoor applications. The company, founded in 1946, is headquartered in Northvale, NJ.What s in the Box?PVC postPVC capPVC stabilizerSet screws