Giant Maxi Crystal

Grow a giant crystal, up to 10 cm in diameter. Start by growing small crystals for 48 hours, then use them as a base to grow a giant crystal. This will grow for several weeks in the included bucket. Includes: pre-dosed crystal powders (76 g and 370 g), culture tanks (250 ml cup and 2 liter bucket) and illustrated instructions in color. Not suitable for children under 8