TRENDBOX 24PCS 5" x 5" x 5" Foam Pit Blocks Sponge Cubes Foam Pit Cubes Sponge Blocks for Amusement Park, Gymnastics, Freerunning and Parkour Courses - Dark Blue (New)

These expanded well within 24 hours, I got them to bolster a crash pad for my autistic son. And they did exactly what I needed them to do with more to spare. They came in several vacuum sealed packs, I wish now that I had only opened half as I couldnt use them all, im sure as the padding wears down i will add to it, but now its just a matter of storing them until i need them. They are just the right mix of sof but firm. I would recommend and I would purchase again. As for smell, I couldnt smell them when I opened, but sticking your nose to one and smelling definately has a unexoected odor, my kids say they smell like old cheese burgers, and I have to agree, but the smell does lessen over they days. The smell is not so bad that it would be an issue, so I give this product 5/5

Great size like those of the jump parks !

Disintegrated after a year, the bits of foam are impossible to pick up a stick to everything.

Very cool, but returned because some small foam pieces fall off or break off, so avoiding serious accidents until little ones get old and MAY BUY AGAIN.

These blocks are nice. They work very well as added fill for our crash pad. They almost doubled the fill in the pad and now keep our 6+yo (and anyone else who flops on the crash pad) from hitting the floor through the pad. Happy with the product. As mentioned, there was a little odor that needed airing out for a little while, but it wasn't very bad.

Bought for our cheer gym pit. So far holding up well.. no complaints

My son loves it!

order 48 count of 5.1” x 5.1” but received only twelve sized 3”x 4” if even that and also got a box of cases that they said were these.

Very small and expensive considering how small they are. Useless if you have a big pit, you will have to buy 20 packs