Description

Wooden-framed abacus with five steel wires and 20 beads per wire on a 13

Two-thousand-turn 0

Sliding-top wooden box 4 x 2 x 1 inches

designed to hold visible iron-filing field lines and support side-by-side magnet-strength comparisons in mechanics labs

111110 megohms across seven cascaded decades

Mounted Plane Glass Mirror, 100 x 75mm Material_Cork Wooden-framed abacus with five steelLarger 100 by 75mm plane glass mirror set into a wooden mounting block, the wider reflective surface accommodating wider beams and full figure reflection demonstrations.

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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Mounted Plane Glass Mirror, 100 x 75mm Material_Cork Wooden-framed abacus with five steel

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