1、Invisible: The hidden but stable support frame gives you a freshing feeling, don't worry about the metal support that will damage your overall home decoration style. 2、Purpose: This hidden bracket is used to support wall mounted shelves or partitions, saving space and looking like floating in the air. 3、Strong Bearing Capacity: This bracket is heavy duty, with strong bearing capacity, it can support various shelves when installed on the wall. 4、Easy to Install: Make sure to mark the correct position, then drill into the wall, fix the bracket with screws, finally drill into the bracket and install it. 5、Anti Oxidation: This shelf support is made of premium iron and is plated with anti oxidation black finish, which is durable. 4 x Bracket8 x Screw8 x Expansion Screw Item Type: Hidden Floating Shelf BracketMaterial: IronGross Weight: 665g / 23.5ozProduct Specification: 2pcs A 01, 2 holes (black), concealed 150mm longProduct Size: Approx.50 x 30 x 150mm / 2.0 x 1.2 x 5.9inAperture: Approx. 5.9mm / 0.2inHole Pitch: Approx.34mm / 1.3inThickness: Approx.3mm / 0.1inProduct Application: invisible diaphragm carrier