Warning: Choking Hazard - Small Parts. Not for children under 3 years.
Grades 4 - 8. The Pulleys in Motion Class Set provides hands-on activities that give students practical experience with this simple machine. Includes 18 single pulleys, 12 double pulleys, and 12 triple pulleys along with spring scales, twine, pulley links and a 32-page resource guide! 70 pieces total!
