These are hand blown - so there are differences in them. Height and width at opening can be a bit off.
The difference between the 2 varieties is in the square of the base. The smaller is approx 3"x3" while the larger is approx 3.5"x3.5".
Doesn't seem like much, but as you can see, the difference is noticeable.
The opening diameter is between 1.25" and 1.5" on both Vases.