It is a device that enables students in 6th grade elementary school to observe the construction and change of the land, how the sediment carried by the river is deposited and how the land is formed in accordance with textbooks.
Since the water tank and the board inside are integrated, it is hard to break and sand does not get under the board.
Equipped with drainage outlets.
Specifications
Deposited layer: acrylic resin, 150 x 300 x 65 mm, body and reinforcing piece integral type