About Us

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.

Our contact information

By email: custserv@nsi-int.com

By standard mail:
NSI International, Inc.
12 West 27 Street 5th Floor
New York, NY 10001

By phone:
888-425-9113 (8am - 4:30 pm eastern standard time)

Shipping Information:

Orders are usually processed next day, and shipments times are based on the shipping options you select at checkout.
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