I don't have those ones Laurie. For me personally, I haven't bought any square or rectangle dies - at least not plain ones. I just look at them and go why would I buy the die when I can just cut it myself on the paper cutter KWIM? Circles and ovals I've bought dies since I can't cut those. I do have one or two special edged square and rectangular dies on my wish list (my Mom has the curved rectangles and I like them.), but can't see the sense in buying the plain ones. The only possible use for them I can see is if I wanted to cut a square or rectangle shape out of the middle of something, but even that can be done with a ruler, pencil & exacto knife KWIM?
"You may not have lost all your marbles, but there's definitely a hole in the bag." Grumpy Cat