Square foot garden (SFG) modular dividers

I tend to do a lot of SFG, but I have one bed that I like to reconfigure between 1 foot squares and 2 foot squares (pumpkins, etc) depending on the season. So I put together a kit that lets me use 20mm electrical conduit (DETA from Bunnings if you're curious) as my divider, clipping them in and out and resizing my squares as required.

You don't need to resize the squares if you prefer, it will sit quite nicely in a static configuration.

The pictures above are of the system that's actual