The Design House Black Pier Base is specially designed for mounting outdoor post-top lights. This post-top light accessory product is compatible with wood, masonry, and metal and built to withstand years of repeated use. This product has a standard 3 inch diameter fitter. Mount this for a post top light to perfectly illuminate walkways, driveways, porches, yards, patios or any outdoor locations. Constructed of high quality aluminum for strength and durability, this pier base will help you entertain at night or add security and safety for years to come. Designed and manufactured by Design House, the trusted source for quality lighting, hardware, plumbing, kitchen, and bath products for every taste and budget.