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PSS_US
Dual unit spring scales with color-coded sizes., 0 to 2.5N, 5N, 10N, 20N
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From $3.99 /pack
Spring Scales / Newton Scales
Dual unit spring scales with color-coded sizes., 0 to 2.5N, 5N, 10N, 20N
Motor Generator Demonstration Kit For Students Science Projects
Electricity Conversion Kit for Science Education and Projects.
Lens Demonstration Set, Glass, 50 Mm Lens Set
Comprehensive 50mm lens set for optical demonstrations.
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