Pulley Large Demonstration Single, 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
Density Cube, includes one each of acrylic, oak, pine, poplar, steel, aluminum, copper, brass, nylon, and PVC cubes packaged in a wooden storage box, Includes a reference table showing density values of individual specimens, Set of 10
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