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Product Number: TB23237
An outstanding tool for visual learners. With this set of 6 disks (sixths, eighths, ninths, tenths, twelfths, sixteenths) students can clearly visualize fractional parts and their equivalents. Easily add and subtract and compare and order decimals, fractions, and percentages all by simply rotating the dial. Disks measure 6-1/4 in. in diameter.WARNING: Choking Hazard. Small Parts. Not for children under 3 yrs.