Review on Collapsible Shelf Brackets - Heavy Duty Metal Folding Bracket For Wall Mounted Bench, Table, Or Shelf, Space Saving Hinge Design, 2 Pack, Maximum Load Capacity Of 150 Pounds (14 Inch, Black) by Rex Bareham

I installed a flip-up 10"x11" melamine laminated board to the side of my RV kitchen base cabinet to increase the work space. It works just as intended and is sturdy and easy to raise up and down.The release levers when the board is folded protrude a bit, preventing the small lightweight board from hanging 100% vertically. This is A VERY MINOR quibble. I'm actually regretting that I am mentioning it. Any larger surface used with these brackets will hang down vertically, so don't overemphasize this comment in your purchase decision.I knocked off a star for the gyrations I had to go through to drive screws to secure the brackets to the vertical side of the cabinet. A long extension was needed on my drill/driver to drive the screws though the confines and maze of the bracket's construction, and with my bifocals and poor lighting, well, it wasn't glass smooth. Overall, though, these brackets are great. I am a happy purchaser. Buy 'em, curse during the installation, and then be happy with the result.