Fun and safe educational make-it-yourself crystal growing kit;Watch dazzling crystals grow right before your eyes;Contains powder formulas to create diamond clear white single crystals, jagged crystal clusters and vibrant colored crystals;Scientific Explorer is the industry leader in fun, educational and activity-based science kits;Recommended for children 9-years of age and older with adult supervision

• POOF-Slinky 0SA218 Scientific Explorer Grow Colossal Crystals Kit

POOF-Slinky 0SA218 Scientific Explorer Grow Colossal Crystals KitPoof-Slinky