Description

3125 inches across

Virtually friction-free 2-meter air track shipped with vehicles

and airway anatomy at scale

the wider-range Wheatstone-bridge reference

Wooden Frame Abacus, 6 Steel Wires Chemistry_Molecular Model Sets 3125 inches acrossWooden frame abacus on a 13. 5 by 9. 5 inch finished base, six steel wires carrying 20 beads each for hands on instruction in counting, place value, and basic arithmetic.

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Wooden Frame Abacus, 6 Steel Wires Chemistry_Molecular Model Sets 3125 inches across

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