and 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. Soroban abacus is great for rapid calculation.This abacus is encased in a durable plastic frame and suspended with bamboo rods.It is a user-friendly abacus/soroban which is highly recommended for use in any math abacus/soroban course. Feel is good sturdy and durable resistance to break. Features: Traditional arithmetic abacus,a classic tool that is still fully functional A nice tool for kids' early mathematic education Can be used as classical calculator in office,education tool for teacher or a gift for abacus collectors Abacus Tool only,other accessories demo in the picture is not included. Specification: Material: ABS Size:As shown Color: Colorful Quantity: 1 Pc Package Contents: 1 x Abacus Tool Note: Please be aware that due to your computer monitor display the color may have some difference between the picture and the real item. There is 2-3% difference according to manual measurement. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.