High Valued Package with Hardware: Each set includes 4 brackets 18"x12" shelf brackets and all the essential hardware required for a straightforward and hassle-free installation process. The quality of our wall mount shelf bracket will not let you down. All we supply different size and different pack set for you to choose. More amount, less cost, just have a try! Impressive Load Capacity Our 4-pack of metal shelf brackets for shelves is a L shape with gusset to ensuring long-lasting and dependable support for your shelving and fixtures. With a substantial 3mm thickness, these black heavy duty brackets for shelves offer exceptional strength, making them ideal for both residential and commercial applications. Each pair of the metal shelf brackets could support maximum about 240 lb if properly installed.