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Versatile Functions: Includes diode test
They are a genuine piece of natural history
Essential Kit
Premium Grade: Extra pure grade sodium chloride
Specifications: Each batch is subjected to rigorous quality control measures
Set of 250 Hollow Pattern Blocks Versatile Functions: Includes diode testIncludes: 250 x Hollow Pattern Blocks Classroom Pack. Used in number of applications in laboratory, home, general purpose or games. Premium Quality: Pattern Shapes are made of high quality, heavy duty and durable materials. Ideal choice for science classrooms and household use. If you need custom order with different sizes design, please contact us. Safely Packaged to avoid being damaged during transportation.
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