[dimensions]shelf bracket, designed to support 6 inches to10inches deep shelf. (lumber board is NOT included) [material ] The bracket is die-cast formation from high-grade metal material, which is rust free. The brackets are 100% perfect 90-degree vertical angle, no need to worry about Bending deformation rebound problem. [Capacity]The Specially made alloy metal material is lighter but stronger than the others on the market. It has greater load- bearing capacity, It can to1100 pounds each pair, shelf brackets can support books,electric power tools , etc. Using as mantel Brackets ,Heavy Duty shelf brackets (set of 2) Fireplace Mantel Brackets, countertop support! [powder coating finished & Applicable place] Matte black coated ,durable and sturdiness. PICESA bracket comes with traditional matte black,It fits in perfectly in your farmhouse kitchen, garage, basement storage room, and backyard. [Complimentary hardware]Comes with high strength screws ,as good as your local hardware chain store. screws and anchors are for different walls. Following the steps properly, put your Pre-prepared lumber board on, you will get your perfect and stable floating shelves. Colour:Black Material:Metal Package Contents: 2 x Heavy Duty Shelf Brackets Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.