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Wooden Frame Abacus, 4 U-Shaped Steel Wires Material_Muslin Designed for class-front lateral-displacement demos

Wooden Frame Abacus, 4 U-Shaped Steel Wires Material_Muslin Designed for class-front lateral-displacement demosWooden framed abacus with four U shaped steel wires holding 20 plastic beads each on a 13 by 7 inch base, the compact option in the abacus series for foundational arithmetic.

SKU: 34907678268 · From lagence-mr.com

4.7
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Description

Designed for class-front lateral-displacement demos

Primary-level electricity kit for six students with connecting leads

or yeast cultures for metabolic rate experiments in biology labs

LED-output photoelectric cell on a 3

Banana-plug terminal electric bell operating on 4 to 6 volts AC or DC with a 2

Wooden Frame Abacus, 4 U-Shaped Steel Wires Material_Muslin Designed for class-front lateral-displacement demosWooden framed abacus with four U shaped steel wires holding 20 plastic beads each on a 13 by 7 inch base, the compact option in the abacus series for foundational arithmetic.

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