Fold up desk bracket question

[soliberus]

Hi everyone

I'm looking to build a fold up desk similar to the picture below. What do you call the bracket I've circled in red?

I've searched for "fold up bracket", but it doesn't return what I'm looking for.

Many thanks in advance

 

[foxhole]

These are stronger .
DXIA 2 Pack Folding Lock Extension Table Bed Leg Feet Support,Folding Shelf Bracket,Self-Locking Hinge Table Leg Fittings and Gussets,for Folding Legs Folding Workbench Folding Desktop Expansion https://amzn.eu/d/51xhAqb

 

[Burnerman]

I call them drop down stays, but Foxy is closer!
John

 

[soliberus]

Thanks gents, I'll have a look at those.