These water beads are so much fun no matter what your age is!! Every time my youngest has friends over, they pull the water beads and “grow” a bowl full of them. Then I get the fun of shrinking all them when they are done, lol. The good thing is, they do shrink and can be reused. I just lay the grown beads out on a baking sheet and let them sit out a few days and they shrink up just fine ready for the next day of fun.