【Dimensions】7 x 6 inch shelf bracket, Either side of the bracket can be used as a beam to mount the board, which gives you two options. designed to support 6 inches to 12 inches wide shelves. (lumber board is NOT included),【Material 】Lifetime rust-free, die-cast formation from high-grade alloy metal material,【Capacity】The Specially made alloy metal material is lighter but stronger than the others on the market. Double arched beam holding up to 900 pounds each pair, Not only heavy duty, our corbels are beautifully finished with antique appeal and Can be integrated into your living room decoration style shelf brackets can support books,electric power tools ,Emergency food, etc. Using as mantel Brackets ,Heavy Duty shelf brackets (set of 2) Fireplace Mantel Brackets, countertop support!,【Powder coating finished & Applicable place】 BLACK-METALLIC SILVER coated finish ,durable and sturdiness.PICESA bracket fits in perfectly in your farmhouse kitchen, garage, basement storage room, and backyard.,【Complimentary hardware】Comes with G5 high strength screws and authors ,as good as your local hardware chain store. screws and anchors are for different walls.screws are for the studs. in order to achieve the maximum load bearing capacity, please remember to install the metal expansion tube on a solid carrier, such as cement wall, brick wall, etc. Following the VIDEO steps properly, put your Pre-prepared lumber board on, you will get your perfect and stable floating shelves.