Packaging and size: 6 Pieces Floating Shelf Brackets (mounting screws are not included), Product Size: 70 x 75 x 15mm / 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, anti-rust and non-flexible, providing strong bearing strength. Easy to install: With 2 mounting holes, use a few basic DIY tools for effortless installation in just minutes. Applicable size: 3 inch deep shelf brackets are sturdy enough to safely support up to a certain weight, and support board width from 100mm to 300mm. Fully Concealable: Use a planer saw tool to remove 0.55 of the wood. Designed to completely hide behind your shelf, small profile for easy concealment. Color: Silver Size: 7*7.5*1.5 cm Quantity delivered: 6 pieces Product dimensions are all measured by hand, there are errors and the actual product shall prevail. Product color is affected by shooting light view and there is a slight color difference, which depends on the actual product received.