Japanese 131517 Column Abacus Arithmetic Soroban 13 Digit Rods

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Description:

LARGE DIMENSIONS: 13/15/17 Digit Rods Optional. It is a perfect size for adults' use and decoration
STRONG WOOD MATERIAL: solid wood frame beads and metal corner guards
BEADS NUMBER: 7 Beads Per Row x 13/15/17 Rows
CONVENIENT TO USE: the beads slide easily, to date, calculating with the help of an abacus is still being practiced by merchants and clerks in some countries.
BOTH PRACTICAL AND EDUCATIONAL: Use abacus to teach your kids math fundamentals such as counting, addition, subtraction, multiplication, and division. Also helpful for visually impaired individuals.

Specification:

Material: wood, metal
Size: approx.
15 Digit Rods: 42.3x16x2.8cm/16.65x6.3x1.1 inch
17 Digit Rods: 47x16x3.0cm/18.5x6.3x1.18 inch
13 Digit Rods: 37x16x2.8cm/14.57x6.3x1.1 inch

Package Includes:

1 Piece Abacus

Note:

Color might be slightly different due to the color calibration of each individual monitor.
Please allow slightly measuring deviation due to manual measurement.

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