Fills 1 layer deep of a 45" blowup pool perfectly. Great colors. Good variety.
Our little man went through a phase of climbing into the middle of his pit and pitching every single one of the balls out. It took a whole lot of work and a whole lot of "no, really...you're totally helping me pick all of these up" to get that to stop. Months of that, actually. I nearly burst into tears with joy when he picked up some he had moved out of the pit on his own yesterday, it was that awesome. For our little man, even though that was challenging, it was a no brainer, because it has been very helpful with some of his sensory stuff, and he absolutely loves ball pits. Loves the one at his therapy clinic probably more because it's massive, but he loves his in home one enough he climbs into it to sleep in the balls sometimes. And these have totally held up to that.
These just arrived the other day so my review is based off first impressions. I ordered these for my 6mo who is just learning to sit unassisted. Ordered the pack of 200 to put in his pack n play which seems to be the perfect amount to completely fill the bottom with a little volume to spare. Seem to be of good quality & the color variation is really fun. I'm sure with time my son will be just as excited about his ball pit as I am!