I haven't opened these yet as they're for surprises throughout the year, but the boxes themselves the squishies are in are so tiny I was shocked. The box itself is maybe an inch or a tiny bit more. You know - so the squishy inside has to be even smaller. Whew.
For the cost, it's really not worth it. I collect squishies and thought these were average size. They are miniscule!
I would advise buying them if they're super cheap, less than $2 or so each. You can get huge squishies for that cost elsewhere. Unless, of course, you really like the collectible aspect of these.