UPDATE: About 2 years after purchase we still have half the fish “alive” and kicking. Perhaps a bit battered...okay, extremely battered, but they’re still playing with them!**Independent, non-compensated, verified.**I've got to admit, I'm pretty ticked off here. Not for the reason you think, though. If it's not free items in exchange for their "honest" (99% of the time glowingly positive) review, it's low ratings to products due to consumer oversight. PLEASE read in the description that this is an assortment of sea animals. You may not get exactly what is shown, so let them know if you got half a pack of one fish. AND it shows right on the display photos that there is filling in some of them so don’t expect them all to be solid - that would kind of defeat the purpose for a puffer. I hope the following is helpful in your decision to purchase, as I was very satisfied and will buy again...and am glad I didn’t listen to the one-stars.SUMMARY OF PROS/CONS:+ Fun, SAFE toys+ 7/10 durability+/- They DO stain (at first). After some use they stop, but a Magic Eraser will take it off.+ Color-changers DO change color.+ Educational, encourages imaginative play.+ Anatomically pretty accurate.+ Nice coloration and variety of color.+ Stretchy beyond what is reasonable.+ FABULOUS customer service.+ Materials are as stated, and after cutting the puffer open (see short video) the padding really is tiny pieces of what seems to be paper. I tried to submerge them in water to see if they'd absorb and swell, and all they did was float for 24 hours. This was after my son ate some. (TMI TIME! He was fine and pooped them out.)++GREAT REPLACEMENT FIDGET! I have two Autistic boys and they love them.- Octopus and those with tails are subject to amputation via toddler teeth. Any of the thinner areas are especially susceptible. Again, see the puffer fish video. If you have a very young one who likes to chew I would wait, as the fins could pose a choking risk if they can manage to get them off. The damage shown in the pictures (missing ray tail, etc.) was cause by a 3-year-old who knows to spit things out!Tips:IF you happen to get a set with little variety, don’t hesitate to contact them about the issue!The first shipment we received was pretty much 50% piranhas. I contacted customer service and received a new shipment with much more variety, AND an "apology fish" from their other product line of larger sea animals. It's the huge eel in the pics. Please see photos for examples, but please note, there were many more which were lost during our "testing" phase.Keep a Magic Eraser on-hand when you first get them out onto any surface. I recommend a good washing with soap and not to use them while wet on any valuable fabric until they’re “broken in”.Please let me know if this was helpful or if there’s any info I missed. I’ve missed out on a lot of good products and wasted money on bad ones due to oversight or inaccuracies in reviews.