The pair of blocks I got are identical in size and shape, just the thing for giving me some extra support on some exercises. Of course they're heavier than the foam type, but I find that cork blocks are better for me to anchor myself.The one downside --- and it's a significant one to me --- is that the blocks came packaged in clear film with a mailing label slapped on. I don't mind so much having the contents exposed, but one of the blocks got fairly dinged up along two edges. It still serves the purpose I got it for, but aesthetically it's ugly, plus I had a bit of cork shedding in my exercise space for a while. I considered sending them back but finally decided to keep them rather than try ordering a set from another company or even a replacement pair from this one. After all, there's no guarantee that the same packaging style wouldn't be used on those, and the outcome could be much worse.Ultimately, I'm glad that I got these, and they've been very useful. But if I ever need a new set, I think I'll try a brick and mortar store instead.