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Textile Fiber Set, Glass Prepared Slides
12-slide textile fiber set, glass slides with curved edges.
Gauss Rifle (Magnetic Linear Accelerator)
High-speed steel ball launcher using magnetic chain reaction.
Engineering Lensatic Compass, Metal Case
Accurate and durable compass for land and water navigation.
Plastic Pulleys On Metal Assembled Frames
Durable pulleys for testing and experimentation. Not for young children.
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