Grow amazing magic marbles right before your eyes!
NSI International Inc. is a global marketer and manufacturer of creative toy and consumer products including Magic Rocks™, Smithsonian® Science kits, and its own craft and activity brands. NSI’s products can be found in thousands of retail locations in more than 30 countries around the globe.
By phone: 888-425-9113(8am - 4:30 pm eastern standard time)
Copyright NSI International Inc. New York, NY 10001.
TM and R designate trademarks of NSI International Inc. All Right Reserved.
The Smithsonian name and logo are trademarks of the Smithsonian Institution.
Magic Rocks® used under license.