Description

wheel-and-axle

Blue 300mm 2mm-stackable lead with nickel-plated split-hollow pins

5 newtons for measuring small forces during spring-law and tension-force classroom investigations

holding a 20mm candle steady for thermal-expansion

Double Convex Glass Lens, 50mm Diameter, 300-1000mm Focal Length Range Grade_Food Grade wheel-and-axleBuilt for long bench convergence flexibility, a 50mm double convex glass lens spanning 300 1000mm focal lengths gives projection style optics setups a single range rated element.

Exchange/Return Notes

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Final sale items are not eligible for returns or exchanges.
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Double Convex Glass Lens, 50mm Diameter, 300-1000mm Focal Length Range Grade_Food Grade wheel-and-axle

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