It is a very good solution for a folding shelf or small bench. I find them very well made and sturdy, and much more durable than those with a simple hinged blade for diagonal support. Smart "latch" at the edge of the bracket for easy unlocking and closing. I did not find information on the allowed load anywhere, but purely empirically I think it can easily withstand 15 kg per bracket with the appropriate anchoring to the wall. Installation is a moderately difficult job, requiring good marking for the holes and proper anchoring.