I checked them all, but couldn't find two the same. I lost count of how many there were in total, but each one had its own particular shape and tone, lending a pleasing variety to the gravel in our drive (while at the same time seamlessly blending with the numerous tonnes I've spread there in the past). The "crunch" has a particularly satisfying tone to it underfoot, like chomping into a well-baked water biscuit.
I should mention my previous orders were equally successful, and all the gravels supplied by Mone have shown themselves to be hard-wearing, with very little evidence of physical damage despite having (insane though it sounds) cars driven back and forth across them on a regular basis!