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dual-purpose electroscope
Easy Connectivity: Connects via two 4 mm plugs for straightforward setup and operation
including basic educational demonstrations in anatomy
Polished glass finish looks sophisticated
The dry battery cell is fixed to stand from the bottom side
Metal Cubes dual-purpose electroscopeMetal Cubes A. Cubes Set of 12 Kinds Materials, (size 2x2x2cm) including Glass, Soft Wood, Iron, Lead, Aluminum, Zinc, Copper, Brass, Plastic, Resin, Stonum, C. Cubes Set of 6 Kinds Materials, Size (1x2x3cm 6 pcs), total 18 pcs. including Iron, Lead, Aluminum, Zinc, Copper, Brass. D. Cubes Set of 4 kinds of Materials with Hook, Size (3x3x3cm) including Lead, Aluminum, Brass, Iron. E. Cubes Set of 4 Kinds Materials, size (1x1x5cm) including Lead,
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