I have one very similar to that, bought it some 10 or 15 years ago for holding books open on my computer desk. It’s rubbish for that: those little pointy folding things you can see at the bottom in your photos aren’t strong enough to hold open a paperback A4-size book, which is exactly what I needed the stand for. Model kit instructions should not have that problem, and I must say I like the idea — if I had the room to put it without having to massively rearrange my workbench and long-ingrained habits there, I might just use it too.