Reizen Abacus for The Blind - Green Frame - Green and White Beads

Description

• Abacus for the Blind perfect for teaching children and for adults to do quick calculations
• Abacus for Math has Greena and White Beads, Green Frame
• 15 rods with 4 green beads on top column and 1 white bead on lower column
• Resistant Backing

This Abacus for the Blind is a Cranmer-style abacus used by blind children to gain an in-depth understanding of numbers and mathematics, and by blind adults to perform quick calculations. This Abacus for the blind has a green frame with green and white beads. The Abacus for math has 15 rods with 4 green beads on top column and 1 white bead on lower column. Resistant Backing. Product dimensions (imperial): 3.5 inch H x 6 inch L x 0.125 inch W Product dimensions (metric): 88.90 mm H x 152.40 mm L x 3.18 mm W

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