This great rock tumbling kit comes with everything you need to polish stones and gems. Tumbling is easy: just place a few rocks or minerals into the tumbler with some grinding powder, and start tumbling! The grinding powder duplicates the erosion process that takes thousands of years in nature. It also comes with jewelry-making accessories to display the rocks, and is excellent as a birthday present or Christmas gift.
Heavy-duty microscope for high-school and college biology labs. Magnification of up to 1000X.
This classic desk toy will keep you amused!
Command robotic creations with this cool construction kit!
This superb chemistry set features 350 mind-boggling experiments!
Discover a world of kaleidoscopic effects within this perfectly clear prism of the Light Crystal!
Use this laser pointer for any professional presentation!