The ubiquitous toys of science! Gyroscope (original) $5.99 Gyroscope (retro) $5.99 Gyroscope (twin pack) $10.99 Gyroscope (precision) $9.99 Gyroscope (gravitron) $8.99 Replacement String (gyroscopes) $0.99 Copyright © 2003-2008 E-Clec-Tech. All rights reserved. All other materials and logos are copyrighted by their respective owners, or companies.