ZIMILAR Floating Shelves fitting bracket[Suits Different Walls]: Our L shaped shelf brackets can be installed upwards and downwards into different walls. The upgraded design make it also can be installed into wood walls. [Heavy Duty Brackets]: The brackets ensure your shelves stay securely in place, even with heavy items. One pair can support up to 110 pounds on your walls. If using these floating shelf brackets to support the long board, carrying more weight, you need to install more than