There's no end to the sensory stimulation and creativity with the Playfoam Mega Pack! Preschoolers can squish, squash, squeeze, and sculpt this super-satisfying, kid-safe, non-toxic sensory compound, then smash it down and start all over again. Non-toxic Playfoam never dries out, so the creativity never ends. Plus, Playfoam bricks blend beautifully, so kids can create their very own custom Playfoam colors. Set includes Classic Playfoam, Glow-in-the-Dark Playfoam, and Sparkle Playfoam for a totally tactile Playfoam party!