Bridges of Koto are generally large and the largest one (for the tenor notes) is around 8.5cm-high and the smallest one is the same as those of Jushichigen So.
箏柱は、全体的に大きく、最大例（低音部用）は総高8.5cm前後、最小例（高音部）は十七絃の箏柱に同じである。