They do.
https://www.amazon.com/gp/product/B0157G34AY
The package comes with two of each size. The individual sizes aren't really stackable with themselves, but if you put one of each size inside of each other, you can then stack the second group on top of that.
There are two other problems with Pyrex though:
1. they're going through bankruptcy
2. the lids for the newer stuff *always* crack on the edges
The package comes with two of each size. The individual sizes aren't really stackable with themselves, but if you put one of each size inside of each other, you can then stack the second group on top of that.
There are two other problems with Pyrex though:
1. they're going through bankruptcy
2. the lids for the newer stuff *always* crack on the edges