Ok this product is awesome, I love the gridlines and the raise edge so you have something to grip onto. Unfortunately I am horrible at looking at inches and imagining it in my head so it was a little larger then what I was needing for the stamps that I ordered but I was still able to make it work. :)
I just went back to look at the description for this item and the reviews.
I did not see any mention of the fact that this block is hollow.
It is mentioned in a question about this product, but I did not see that until after my purchase.
I have never used a hollow acrylic block for stamping.
I will need to work with it for a while. It will probably be fine, but it feels very different from the blocks I have used.