Robust & DurableAll of these shelf brackets are made of high quality iron which is resistant to bending and breaking, no rough corners and long service life. Distinctive Materials The matte black coating is definitely an unassuming accent for any wall bookcase and especially for industrial and contemporary themed decors. Why choose this shape 1.No sharp edges or burrs can make your installation process safer. 2.The curvature of the L allows you to clean it easily. 3.One-time forging makes the bracket super strong. Widely UsedOur shelf brackets have finish black smooth and can support small and heavy objects. The black L-shaped spacer can be used to mount any kind of shelves such as book shelves, wine rack, exhibition rack and garden shelves. It is an ideal decorative shelf support for wood, especially for a rustic and vintage look. Easy to install First use a drill bit to dig a hole in the wall or board, then install the screw fasteners, and finally use a screwdriver to tighten the screws on the brackets. Very simple to install, enjoy the DIY fun you can have (Please refer to the image for installation steps). Product Size:200 *250mm | Color:Black Specification: 4 shelf Material: iron Color: Black Size:200*250 mm8*10 inch Maximum weight supported by a pair of stands50 kg110 lb . Package included: 4 x L black shelf bracket 8 long screws 8 short screws 8 x expansion pipe (the board of wood is not included)