Science Educational Products:Grow Squishez (Tm) Rainbow Water Beads (5 Bag in 5colors). Kids Learn Best When They're Having Fun

kids under 8 need adult supervision; kind of messy.

The children had a lot of fun with them. However if you have children who tend to stuff everything in the mouth, these balls are not for them, because I don't know whether ingesting them is harmful. Sodium polyacrylate is not poisonous, but perhaps there are impurities? So to be safe instruct the children not to eat the balls.

Huge hit with my son! He absolutely loved these! They do turn mildew after a while if you are not taking care of them, but they are cheap and easy to replace.

This is great for the kids, but maybe only once. after that they're bored. Can't wait to find more uses for these.