Let sparkling crystals grow in five colors. Recommended for ages 10 and up. Blue, red, yellow - soon beautiful crystals will shimmer in the children's room. Simply dissolve the included crystal salts and watch as small and large pieces emerge within a few days. The most beautiful pieces can be presented particularly effectively in the treasure chest. The colorful instructions teach children how to properly use the pipette and other tools. With exciting additional information about crystals and their everyday uses. The step-by-step guide shows exactly how to dissolve the crystal salts. Fascinating supplementary information about crystals and their applications in our daily lives provides children aged 10 and up with a first insight into the world of chemistry. KOSMOS is a media company located in the heart of Stuttgart, known for its commitment to quality, creativity, and innovation since 1822. Well-known products include experiment kits, books, and various games. The range extends from guides, cookbooks, children's and youth literature to board and card games, apps, and e-books. The company aims to convey knowledge in a playful way and foster the creativity of its customers. The Kosmos brand stands for respectful treatment of its employees and partners, as well as for commitment, transparency, and clear processes.