Review on YUMORE Folding Shelf Brackets 20", Max Load: 330Lb Heavy Duty Stainless Steel Collapsible Shelf Bracket For Table Work Bench, Space Saving DIY Bracket, Pack Of 2 by Samiran Pusarla

My workbench does not have a lip, and I needed a secure and stable surface to mount a PanaVise. These folding shelf brackets were perfect. They appear to be very sturdy, and when my shelf is in the up and locked position the shelf does not wiggle or move. When I am finished the I remove the vice head, and unlock the shelf to the down position. The brackets come with mounting hardware. My only suggestion is that will be easier if you have someone help you during the installation to hold the shelf while you screw the bracket to the wall or vertical surface.