Banshu-soroban

Traditional abacuses from Hyogo's Ono, preserving calculation culture.

Banshu-soroban are traditional Japanese abacuses produced in Ono, Hyogo Prefecture, which has been the center of soroban manufacturing in Japan for over 400 years and produces the vast majority of domestically made abacuses. Each soroban is assembled from birch or ebony frames with bamboo rods and beads crafted from birch wood or boxwood, requiring over 100 precision steps. Though digital calculators have reduced everyday use, the soroban remains an important educational tool in Japan, valued for developing mental arithmetic and concentration skills.