Perfect hidden shelf brackets to support custom hidden shelves, elegant storage solutions that make your home more beautiful and organized. Strong load-bearing capacity: securely attach suitable brackets into the studs of a solid wall or cavity wall. The maximum load capacity of the shelf bracket can reach 20 kg. High-quality material: The inside of the floating shelf is made of tempered iron, and the expansion tube is made of plastic, good workmanship, durable. High stability: The hidden mounting frame can be mounted on wood products or masonry, the support rod is a hexagonal barbed cylinder that increases the obstruction of the board and improves stability. Wide range of applications: hidden shelf brackets can support and fix various wall shelves such as bookshelves, shop shelves, bathroom shelves, shelves, etc. Feature: - The load bar is a hexagonal column, which can increase resistance well and will not shake. - Commonly used for DIY or custom wall shelves, bookshelves, hidden in the wall to save space. - Made of iron threaded pipe and ABS plastic, it is durable and beautiful in appearance. Installation Steps: 1. First measure the hole distance and drill the hole. The depth of the hole should not exceed 72 mm. The hole in the wall corresponds to the depth of the hole in the board. 2. Insert the expansion tube into the wooden hole and fix it. Insert the support rod into the expansion tube and tighten it clockwise until the expansion tube is fully expanded. 3. Insert the support rod into the wall hole and fix it. If you lack tools, please contact a local craftsman to install them. Each shelf bracket can hold 15 pounds. For heavier shelves, add additional shelf brackets to distribute the weight. Specification: Material: metal (iron) + plastic Size: as shown Color: brown Weight: 300 g Quantity: 8 Package Includes: 8 * Hidden Brackets Note: 1. You need to prepare a 12mm drill bit to drill holes. 2. Each board must have at least 2 invisible brackets and be kept in the same horizontal position. 3. Remember to place the middle silver metal ring on one side of the expansion tube and embed it into the wall.