I am afraid you have to click on the design.I would download everything you can. You never know when you might get a machine that has larger frames. Also often you can downsize the designs by about 20%.
A very good question. If I am interested I click on the design to check out the info. For me, I am more interested in the format than size. I no longer bother to convert designs.
I think u have to at least click on it & above the download button is the size. But it's easy to just click on the back arrow to return to the page & check them. The blank oval towel hanger on designs by cuties rite now is for the 4x4 hoop. MOST of the alphas are for the 4x4