Description: Soroban style abacus, great for rapid calculation. This abacus is encased in a durable plastic frame and suspended with rods. It is a user-friendly abacus or soroban which is highly recommended for use in any math abacus or soroban course. Traditional arithmetic abacus, a classic tool that is still fully functional 13 rods, with 1 bead above and 4 beads below on each rod Well made plastic frame and beads 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 Material: Plastic frame and beads Color: Black frame, colorful beads Package includes: 1 x Abacus 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.