A scientific kit to safely create colorful crystals. Mix the reagents in the container, deposit everything in the "cave" and wait. In no time, your crystals will form like magic!
- With the illustrated manual, giving life to your crystals will be a breeze.
- Easy and safe Crystals form quickly
- Everything you need to do "Grotte" experiments to build
- Illustrated manual with interesting instructions and facts
8-12 years old
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