Hollow Acrylic Prism, cube, With Stopper - For Physics and Light Experiments, Hollow inside allows for liquid to be poured into cube, Great for physics classrooms, made from acrylic plates properly cemented together, Excellent tool for optical experiments, Size: 25x25x25mm
Force Table - Economy 3-Legged, Weights Not Included, Inexpensive, Light In Weight, Made From Durable Pvc 3 Legged Force Table, Supplied With Ball Bearing Pulleys & Weight Hangers, Accurate Product, Lighter In Weight, Top Made From Durable Pvc
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