The abacus,also called a counting frame,is a calculating tool where beads are moved up and down and by feeling and looking at the beads, complex calculations are made.
Features: 1.Traditional abacus,a tool that is still fully functional 2.A nice tool for kids' early mathematic education 3.Can be used as classical calculator in office,education tool for teacher or a gift for abacus collectors 4.Feel is good sturdy and durable resistance to break.
Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!