Heavy Duty design, maxium support weight of 240lb for a pair of this shelf bracket. Designed to support 8 inches to 12 inches deep shelf. Matte black powder coat finish. resistant to corrosion and rust, durable. Creating a rustic, reclaimed, salvaged look,perfect for your home, office, garage, work space or anywhere else.Size:L 8" x H 6" x W 1", 3mm Thick. Package included: 4 x Brackets , 12 x long Screws, 12 x short Screws(Wood plank is Not included)Our floating shelf brackets come with 4 brackets for your wall mounted shelves.Our heavy-duty brackets can support Audio Equipment,bookshelf,kitchen ware,electric power tools , TV bench ,farm tools,etc