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Educational demonstration wall calculator soroban abacus MENTAL
Type - Wall mounted
The material of the body and guides is wood
The material of the beads is high-quality plastic
The color of the beads is yellow
Inside each bead is a special mechanism that allows the bead to be held in a vertical position while showing it to students.
Dimensions:
Length - 58.5 cm
Width - 20.5 cm
Thickness - 3.5 cm