8 Pcs Shelf Bracket,4 Inch Black Floating Shelf Bracket Heavy Duty Meta Walll L Bracket for Floating Shelf Bracket - Wall Mounted Support for DIY with Screws The size of our heavy duty shelf bracket 4inch/100x64x3.5mm,and comes with all screws and shelf bracket hardwares that are needed to stall a exterior heavy duty floating shelf bracket. Our black shelf bracket is made of heavy duty steel and could maxium support weight of 44lb for a pair of this black l bracket. Bigger the amount, lower the each shelf bracket black price. The Bright black paint surface small shelf bracket small solid and strong could be used for any shelf support bracket install and bracket for floating shelf.We also sell bright black/bright white/gold/matte black. Easy to install rustic shelf bracket.1, Use a drill to dig a hole on the wall or board and then install the black shelf bracket screwholders. 2. use a screwdriver to tighten the screw on the metal l bracket. Excellent after sale service guarantee-We offer 90 days no reason refund or replacement service if any decorative shelf bracket quality problems happen.