Now I am pretty sure that that is not what they are actually called but I found them at the dollar Tree and that is what they called them(my son just told me they are called Orbies) :O). Basically they are small beads that absorb water, but mostly they are great fun to watch! Then they can water your plants for sometimes weeks! My box came with 2 packages inside so we emptied one package into a small container. I guess it is an 8 ounce cup really. Then I filled it about half way with water. I really hope this cup is big enough as this expand :/ This is what it started out like.
They were so much fun to watch. As they absorbed the water they released small bubbles. They kids found it so amazing! Best part is they are completely harmless and after they are grown...............kind of fun to play with ;o) but make sure container is about 2 cups.lol because I did end up having to move them to a bigger container.