KidWind High Torque GeneraTor wiTh Wires, High Torque GeneraTor produces lower volTage buT higher currenT for a given roTor speed, Recommended for College and High School
Pulley Large Demonstration triple, Designed for Classroom Demonstrations, Light-weight, low-friction, and deformation-resistant plastic ensures accurate results, Open to make it easier for users to run pulley cords through them