A specially designed abacus that keeps beads in position once they have been set.
277 in stock
Eligible for Free Matter for the Blind Shipping
This is a 13-rod abacus. The frame measures 6 1/8 x 3 1/4 inches and the bead diameter is 3/8 inch. Red felt backing prevents beads from slipping.
An optional metal coupler is available for linking two abacuses together.
Weight: 2 lbs
Federal Quota Funds: Available
Age Range: 5 and up
Grade: 5 and up
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