【dimensions】8 x 4 inch shelf bracket, designed to support 8 inch to12 inch deep shelf. (lumber board is NOT included),【material 】 The bracket is die-cast formation from high-grade alloy metal material, which is lifetime 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 hold up to 150 pounds each pair , 10 to 90 pounds is the best weight bearing effect, PICESA L brackets can support books,electric power tools ,Emergency food, etc.,【powder coating finished & Applicable place】 Matte black coated finish ,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 G5 high strength screws and authors ,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.