2 Colors Growing Crystals: Fast Growing Crystals of blue,purple crystal chemistry has never been so fast (grows in 3 - 5 days). Use the interesting and colorful Exploration Lab to grow your own crystals. Complete Science Experimental Kit: The crystal growing kit includes everything you need to get started creating your own crystals formations, includes 2 x Crystal Growing Powder Bags, 2 x Seed Crystal Rocks, 2 x Stir Sticks, 2 x Display Stands, 1x full-color Learning Guide. Growing is Easy: Crystals kit environment we provide can grow into crystals more successfully. Put the crystal in a moisture-proof transparent container to easily observe the crystal growth, and keep your crystal intact and show it to your family Enjoy with friends. Inspire Children's Love of Learning: There is no better way for your children to explore the miracles of science than through hands-on science projects. You can make colored crystals at home and form vibrant crystals through simple chemical reactions. Fun STEM activities for children can inspire a lifelong love of science and learning. Best Gift Guide: A perfect STEM project for children aged 5 and above, suitable for birthday and holiday gifts for children and teenagers, and also suitable for weekend leisure, parties, and parent-child time.