15 soil samples in a wooden box

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Fifteen soil samples are placed in a wooden, lockable box. Each sample is placed in a glass, transparent, closable jar (5.5 cm high and 3 cm in diameter). All jars have their rigid nests in the filling of the box. The soil samples are: rusty soil, laterite, black earth, red earth and rice. Each of these is in the form of a sample taken from soil levels A, B and C. The attached list of soils is in Polish. Dimensions of the whole didactic aid: 27.0 x 20.5 x 4.7 (H) cm.