【meaurement】10 x 6 inch shelf bracket, apply to 10 inch to16 inch deep shelf. (board is NOT included),【perpendicularity】 The brackets are 100% perfect 90-degree vertical angle.,【LOAD 】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 320 pounds each pair , 280 pounds is the best weight bearing effect,【powder coating finished】 Matte black coated finish ,durable and sturdiness. FIRMETAL L bracket comes with traditional matte black,It fits in perfectly in your farmhouse kitchen, garage, basement storage room, and backyard.,【Complimentary PACK】G5 high strength screws ,screws and anchors are for hard walls. (dry wall anchors not provide) Following the steps properly, put your Pre-prepared lumber board on, you will get your perfect and stable floating shelves.