【Sturdy and Durable Material】The wall shelf bracket is made of strong and durable cast iron, the thickness reaches 0.5 cm, different sizes of shelf brackets have different weights, the smallest size of each bracket weighs 430 g and the largest size of each bracket weighs 600 g. It has good load-bearing capacity and is not easy to break and collapse. The surface is painted to effectively prevent rust and corrosion and extend the service life. 【90° Unibody Embossing】The sturdy, invisible shelf brackets with 90° unibody embossing. Unlike segmented welded shelf brackets, the unibody L-brackets can better bear the load and reduce the unevenness of the slope, so you can rest assured that you can place all the items you want. 【Hidden Design】There are two installation types: upward angle installation and downward angle installation. If the bracket is installed at a 90° upward angle and the panel thickness is less than or equal to 4 cm/1.6 inches, the bracket can be completely hidden, making