About this item
ABS
Number abacus--education tool for teacher or a for abacus collectors,counting bead
Abacus to teach counting to --chinese style, also suitable for collection, decorate your office, living room, study, etc,chinese abacus for
Learning mathematics abacus--made of plastic material for long time and use,abacus
Abacus math tool--made of and to use,abacus for math
Students calculating abacus--applies to accounting, competition, exercises, learning mental arithmetic, special abacus etc,teaching abacus
