Package & Size: 6 pcs 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, tough and durable, anti- corrosive, 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" from the wood. Designed to completely hide behind your shelf, small profile for easy concealment. Product Description About Stainless Steel Hidden Invisible Floating Shelf Brackets: Floating shelf brackets will help you maximize space in your home and improve flexibility. Widely used on the