EWUROI Portable Chinese 23 Digits Column Abacus Arithmetic Calculating Counting Math Learning Tool

23 rods, with 1 bead above and 4 beads below on each rod.
Traditional classic functional arithmetic abacus.
Well made wooden frame and plastic beads.
A nice tool for kids’ early mathematic education.
Can be used as classical education tool for teacher or a gift for abacus collectors.
light, compact and convenient abacus