National Geographic Mega Crystal Growing Kit with 6 Crystals for Kids 8-12 | Glow-in-the-Dark Crystal, Light-Up Night Display, 5 Additional Colors, Real Crystal Specimens, Science Kit, Birthday Gift

FAST-GROWING CRYSTALS IN 6 COLORS - Grow blue, red, purple, green, yellow, and glow in the dark crystals! Crystal chemistry has never been so fast (grows in 3 - 4 days), fun, and colorful, making this the perfect educational activity or gift!