WORLD CLASS SCIENCE DIG Excavate your gems and crystal and then learn the crystallography of each specimen with our full-color learning guide filled with fascinating facts. TOY KITS INCLUDE 20 different natural Gems 1 mallet 1 chisel 1 ousting brush 1 magnifier 1 learing guide. With these you can start a interesting science stem game. Manufacturered by Genovega. Toys That TeachUse a hammer and chisel to cut through the mud carefully.Slowly dig out the gems.Once you find a gem.Gently brush the dirt off the surface of the gem.Then you can collect a beautiful gem. That's it! Pretty easy right?! A Fun And Educational Gift For All Ages A science project can be fun and engaging. It fascinates children as soon as they pull it out of the box and is a perfect STEM project. It fosters a love for science and geology in a fun and exciting way. DIG UP REAL GEMS Excavate 20 real Gems discover it feel like a real archaeologist excavating up unique natural gemstones from the treasure.