Package and Size: 6 Pieces Floating Shelf Brackets (Mounting screws are not included), Product Size: 70 x 75 x 14mm / 2.8" x 3" x 0.55" (L*W*T); Mounting Hole Distance: 42mm / 1.65". Sturdy and Durable: These brackets are made of high quality stainless steel, precision welded, strong and durable, anti-corrosion, wear-resistant, rust-proof and non-flexible, providing strong bearing force. Easy to Install: With 2 mounting holes, use some basic DIY tools for effortless installation in just a few minutes. Applicable Size: The 3 inch deep shelf brackets are sturdy enough to safely support up to a certain weight, and support a board width of 100mm to 300mm. Fully Concealable: Use a planer saw tool to remove 0.55 in from the wood. Designed to hide completely behind your shelf, small profile for easy concealment. Product Description About Stainless Steel Hidden Invisible Floating Shelf Brackets: The floating shelf brackets will help you maximize your home space and improve flexibility. Widely used on the back wall of home, kitchen, garage, office, cafe, restaurant, etc. When installed correctly, the heavy duty shelf brackets can put home decor, such as photos, sculptures, mini flower pots, etc., which will add a touch of elegance to your decor. Specification: -Material: Stainless Steel -Installation Mode: Screw Mounting -Product Size: As the picture shows -Suitable Board Width: 100mm - 300mm Package Includes: 6 x Floating Shelf Brackets (Mounting screws are not included) Note: We recommend installing a stud on your wall for maximum support. For heavier tablets, add additional brackets to distribute the weight.