Are these balls hollow inside (so easily crunched) or filled with air?
1851295
They are hollow and crush pretty easily. They are easily reshape, but the plastic isn't as sturdy as the ones that came with our ball pit.
1024130
They are crunchy treats. They do break apart pretty easily and you would be able to crumble them but they are not soft.
2049105
They're squishy. My cat won't play with hard balls either, but these are great.
386868
They are not hard. They are filled with air and are easily squeaked. My dog loves them. It is smaller than the original ones that Petsmart used to carry, but my dog is 30 lbs. and still carries it everywhere, even to bed every night.
1942634
They are hollow, but you never feel or notice it when opening. I was exptremely happy with them especially for the price.
364330
They are not hollowed out. It is filled in which gives the utensil a good balanced feel in your hand. I love this flat wear! It's our everyday flat wear and holds up beautifully. So glad I bought it.
884423
they are self inflating. It suggests you do not blow into them because you will add moisture into the pad and it could stick together. They are not air mattresses. They are light and provide about an inch of comfy padding for camping or hiking. I store mine open and they remain fully airated until I go camping and then I roll them up. Good luck.
1765145
they are "bullet shaped hollow cubes". Makes Ice quick though, and we have been very happy with the purchase so far.
1763696
I bought these as a gift. I am unable to tell you if they are solid or hollow, however the recipient was thrilled with the gift. Very classy.
877698
They are hard steel balls. They are hollow to allow small chimes to ring as they roll without hitting each other. You use them to exercise and de stress by trying to circle them in your hand without them hitting each other.
937668
They are filled with more of a sand like material and they don't bounce. However more comfortable to hold and throw / catch than rubber balls.
1631463
I'm a little confused by the question, but you can't pop these balls. They are made from some solid material. They are not hollow and therefore cound not pop.
1293447
They are not hollow. I guess you could drill a hole-they are pretty small though
465451
There is grey foam under it and it is thicker up where the holes are so the balls get trapped in there. Hope that answers your question.
1522088
They are not at all hard to fill. Just messy to clean (I used them once and gave up).
2114931
Negative. I believe it is foam inside. The bag has a consistent fill throughout the bag. However, I have never opened the bag and actually looked inside.
1857272
Well they're hollow, filled with air and a little air hole so when you squeeze them air escapes through the little hole. I imagine if you squeezed one while under water it would suck up water and you wouldn't be able to get it out again. I don't think of them as water toys.