White 2-Piece Set Invisible Floating Shelf Bracket Metal Bracket for Wall-Mounted Hidden Wooden Floating Shelf, Matte Black Finish Stainless Steel, 2 Pieces Double Rod Base: With this design, only one bracket is enough to fix a small shelf, which is very firm and practical. The number of brackets actually used can be adjusted according to the size of the shelf. Sturdy Material: Made of high-quality stainless steel, it is not easy to rust and bend, ensuring quality and service life in wet weather. Hidden Installation: With these hidden brackets, you don't have to worry about exposed brackets ruining your decoration. In addition, it can create the effect that the shelf is floating. They are ideal tools for DIY. Product Dimensions: 200mm x 150mm x 20mm (L x W x H), Screw Hole Diameter: 5 mm, Pin Diameter: 7mm, Package Contents: 2 Brackets, 12 Anchors and 12 Screws. Installation Dimensions: Opening Diameter is 10mm, Rod Depth is 150mm. (There is a 1mm error, please drill according to the actual size.)