Advantages of hidden floating shelf bracket:1. The black countertop support brackets are made of iron, which is durable, sturdy, rustproof, and has a strong load capacity. It can provide stable support for heavy countertops, and service you for a long time.2. The end of the black knee wall support brackets is specially designed with a smooth 45°angle beveled edge, which can protect users from scratching. And the hidden floating brackets maximize space, leaving space for chairs or tables. so that knees don't get knocked around. It does not need the frame and can prevent your knee from hitting when sitting under the countertop.3. The hidden mounting brackets feature a black design, which is non-intrusive, practical, and simple. They can match various countertop materials, such as quartz, wood, and concrete.