Vintage-Style 13 Digits Rods Wooden Abacus Soroban Chinese Calculator Counting Tool 11″

Features

• The abacus was an invention from ancient China that uses a system of counting that predates even modern numbers and is still used by some businessmen, traders, and clerks today since it is very suitable for fast calculations.
• 13 digit professional abacus with wooden frame Beads Number: 7 Beads Per Row x 13 Rows
• Measures L11″ x W4.5″ x D0.75″ (28cm x 11.5cm x 1.5cm)
• A great mathematic tool that is both practical and educational: This standard set is perfect for practical use as well as teaching children (Instruction not included)
• It can be used as a classic office calculator, an educational tool for children or a gift for abacus collectors.