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Product Name: 20-Specimen Mixed Gemstone Teaching Set

Product color: as shown in the picture (actual product shot, please refer to the actual product for color differences).
Product Size: The box measures approximately 13*15cm; The stones are approximately 10~18mm each (There may be a slight deviation in measurement by the workers, please refer to the actual product for accuracy).

Product weight: approximately 110~120G, (actual weight allows for a 5G tolerance)
Product material: see the figure below(Due to the difficulty in collecting materials, some materials may be replaced from time to time.