UNSHUDO SOROBAN AVAILABLE
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Intermediate
Target Audience: For intermediate users
Frame shape/material: Triangular, laminate material
Ball Material / Quality: Birch Ball (Medium)
Size: 13.2 x 2.6 x 0.7 inches (336 x 6
Weight: 8.5 oz (240 g)
Begginer
Specifications: Abacus case included
Material: Frame/Ball: Plastic
Number of Digits: 23 digits
(Ball material) Hippopotamus colored balls
Weight: 6.0 oz (178 g)
Advance
[Features] One-touch breakdown type / [Case] Hard case included (magnetic)
Target Audience: For advanced users
Frame shape/material: Triangle (reinforced grommets), laminate material
Ball Material / Quality: Boxwood (top)
Size: 13.8 x 26.0 x 7.5 inches (334 x 66 x 19 cm); Weight: 14